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Greenland (film)

Greenland (film) is a engineering topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Greenland (film) rather than just read about it. In short: Greenland is a 2020 American disaster film starring Gerard Butler as the father of a family who must fight for survival as a planet-destroying comet races to Earth. It is directed by Ric Roman Waugh and written by Chris Sparling.

Greenland (film) — main illustration
Greenland (film) — illustration

Key takeaways

  • Greenland (film) belongs to engineering; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect Greenland (film) to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of Greenland (film) from memory before moving on to harder problems.

Reference excerpt

Greenland is a 2020 American disaster film starring Gerard Butler as the father of a family who must fight for survival as a planet-destroying comet races to Earth. It is directed by Ric Roman Waugh and written by Chris Sparling. The film also stars Morena Baccarin, Roger Dale Floyd, David Denman, Hope Davis, King Bach, Merrin Dungey, and Holt McCallany. Originally scheduled to be theatrically released in the United States, Greenland was delayed several times due to the COVID-19 pandemic. The film was released domestically by STXfilms, through video on demand on December 18, 2020, and then to streaming on HBO Max and Amazon Prime Video. It was also released theatrically in other territories, beginning with Belgium on July 29, 2020. The film received generally positive reviews. The film grossed $52.3 million worldwide with a production budget of $35 million. A sequel, Greenland 2: Migration, was released on January 9, 2026.

Plot Structural engineer John Garrity lives in Atlanta, Georgia, with his estranged wife, Allison, and their diabetic son, Nathan. He is on the way home to watch the near-earth passing of a recently discovered interstellar comet nicknamed "Clarke", along with his family and neighbors. While at the supermarket, John receives an automated DHS message announcing that he and his family have been selected for emergency sheltering. He returns home just as a comet fragment is seen entering the atmosphere on live TV. Previously expected to land in the ocean near Bermuda, the fragment instead strikes Tampa, vaporizing the city along with most of the state. John then receives a call with instructions to head to Robins Air Force Base for an evacuation flight, as Clarke is on a direct collision course to Earth and the impact will cause an extinction-level event in two days. John, Allison, and Nathan pack up and drive away. The way to the base is clogged by heavy traffic, so the Garritys reverse their car and go via a different route. After they arrive, Nathan's insulin is accidentally left behind in the car. Only when they are inside the base, does John realize it is missing and goes back to retrieve it. Meanwhile, Nathan's medical condition is discovered, disqualifying him for sheltering, and Allison stays with him. John returns and boards a plane, but quickly jumps off upon realizing Allison and Nathan were left behind. As John exits the base, a panicked mob breaks in, destroying several evacuation planes when gunfire ignites spilled jet fuel. Returning to their car, John finds Allison's note saying they are going to her father's home in Lexington. After finding medical supplies, Allison and Nathan hitch a ride with Ralph and Judy Vento, only for Ralph to kidnap Nathan to use him and their wristbands to board a flight. John hitch-hikes a ride on a military truck full of people heading towards Canada, planning to get off in Lexington. A passenger named Colin tells him they are headed to Osgoode, Ontario, where private planes are flying to Greenland, believed to be the military evacuation site. Another man attempts to steal John's wristband, causing the truck to crash, killing Colin. John is forced to kill the other man in self-defense. At another air force base, the Ventos attempt to pose as Nathan's parents, but are arrested when Nathan reveals he's not their child. Allison and Nathan are reunited shortly after at a nearby FEMA camp in Knoxville. The following morning, John learns that the largest fragment will hit in approximately 24 hours. Stealing a car, John reaches his father-in-law, Dale's, house, and Nathan and Allison arrive shortly after. The family learn about a complex of underground bunkers near Thule Air Base in Greenland, confirming that is where the evacuees are being sent. Dale chooses to stay behind, bidding farewell to his daughter's family. John, Allison, and Nathan proceed in Dale's truck. While making steady progress to Osgoode, the family learns over the radio that Clarke's largest fragment, which is 9 miles (14 km) wide, will hit Western Europe and obliterate it. They arrive at the Osgoode airport just in time to board the last flight out. As they reach Greenland, a comet fragment strikes, causing the plane to crash and hit a glacier, killing the pilot. The Garritys and the rest of the passengers flag down a military truck and enter the bunker complex just as the largest fragment enters the atmosphere and hits Earth, devastating civilization along with the world. Nine months later, the bunker makes radio contact with other survivors around the world. The Garritys and other occupants exit the shelter, as reports come in that the atmosphere is finally clearing, giving the survivors the chance to bring Earth back onto its feet.

Cast

Production

Development In May 2018, Chris Evans joined the cast of the film, with Neill Blomkamp directing from a screenplay by Chris Sparling. In February 2019, it was announced Blomkamp would no longer direct the film. That same month, Ric Roman Waugh joined the project as director, with Gerard Butler being added to the cast of the film, replacing Blomkamp and Evans respectively, with Butler producing under his G-Base banner. In June 2019, Morena Baccarin joined the cast of the film. In July 2019, Scott Glenn, Andrew Bachelor and Roger Dale Floyd also joined, as did David Denman, in August.

Filming Principal photography began in June 2019 and wrapped up on August 16 of the same year in Atlanta.

Music

David Buckley, who previously worked with Waugh on Angel Has Fallen, composed the film's score.

… excerpt ends here. Continue reading the full article.

Worked examples

Example 1 — a first encounter with Greenland (film)

Start with the simplest possible case. Write down what Greenland (film) claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In engineering, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Greenland (film) before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Greenland (film) ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Greenland (film)

In research
Greenland (film) appears in engineering research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses Greenland (film) in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
Greenland (film) is common in secondary-school and first-year university syllabi. It links to neighbouring topics 2020 American films, 2020 English-language films, 2020 films, so understanding it makes those chapters shorter.
In everyday life
Look for Greenland (film) outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.
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How to study Greenland (film) in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Greenland (film) means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Greenland (film) out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Greenland (film) in simple terms?

Greenland is a 2020 American disaster film starring Gerard Butler as the father of a family who must fight for survival as a planet-destroying comet races to Earth. It is directed by Ric Roman Waugh and written by Chris Sparling.

Why does Greenland (film) matter?

Because it connects several engineering ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Greenland (film)?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Greenland (film).

Tags

  • 2020 American films
  • 2020 English-language films
  • 2020 films
  • 2020s disaster films
  • American disaster films
  • Apocalyptic films
  • Disaster thriller films
  • Fiction about comets
  • Films about comets
  • Films about engineers
  • Films about families
  • Films about impact events

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