Before the film was released, N.A.S.A. sent a memo out to all of its employees stating that they were not allowed to comment on the likelihood of the events portrayed in this movie. Submitted by Bowling255

There is a party at J.D.'s school after the academic decathlon. Most of the students are wearing name tags. Sam's name tag says "Hello my name is Yoda."

In 2002, during pre-production, a deadly hailstorm struck central China in July, and in August parts of Europe were ravaged by what became known as the "Floods of the Century." Submitted by SexyIrishLeprechaun

In January 2002, the Larsen B Ice Shelf, which was where the opening scene took place, did collapse as portrayed in the movie. Details at Larsen B Ice Shelf

The meteorologist (Mark Thomson) forecasting the storm for Fox 5 New York is really the meteorologist for the 10:00 p.m. news for Fox 11 Los Angeles. Also related to this in the tornado scenes in Los Angeles it shows the Fox 11 news report from the helicopter, the helicopter seen is white. In real life Skyfox 11 is black.

The reporter in El Paso reporting the large numbers of people crossing the Rio Grande to get into Mexico is actually one of the weekend anchors on El Paso's KVIA channel 7 news.

Many of the scenes we see of the numerous hurricanes are stock footage of Hurricane Andrew and Hugo, names of deadly hurricanes of the last 15 years.

The man who offers a 100 dollars to the bus driver to get on the bus is the same guy who is on MTV's Boiling Points, and hands out 100 dollars if you pass the test.

Casting Kenneth Welsh as the Vice President was controversial due to his physical resemblance to US Vice-President Dick Cheney, but Roland Emmerich insisted on it for that very reason, likely to highlight the Bush/Cheney administration's opposition to the Kyoto Protocol for reducing greenhouse gas emissions.

With the possible exception of the Weather Channel at the end, all the news channels shown are owned by News Corp (who owns 20th Century Fox, the distributor). Submitted by Xofer