Character mistake: When Missy is at her audition, Courtney and Whitney get annoyed and tell her to do a sequence, (front handspring stepout, roundoff back handspring stepout, roundoff back handspring, full twisting layout). However, when Missy starts the sequence, she starts with a cartwheel instead of a front handspring.
Character mistake: At the beginning of the movie, the German sub gets surprised and severely damaged by a destroyer. The sonar man first notices the enemy destroyer approaching, but only a short time before the destroyer is already literally on top of the sub. German sonar at the time had the capacity to detect ships up to more than 7 miles away, so the sonar man really had to be asleep at his sonar station not to notice the destroyer approaching. (00:03:40)
Character mistake: In the final scene, one of the newspaper clippings on the killer's office wall reads something like, "Huge Mudslide in Mexico: All Killed Expect Newborn." The penultimate word should be "except." (01:35:55)
Character mistake: At the memorial service the principal says that it's been 39 days since 39 loved ones had died. But there were 40 students on the plane and 4 chaperones, making the total 44. Now 7 people got off the plane, which means 37 people related to that memorial service actually died, not 39. Two pilots would make up the numbers, but there would be flight crew too, which still leaves the numbers off.
Character mistake: When the biologist guy talks about writing code for DNA he names the four codes as A, G, T, P, when they are actually A, G, T, C.
Character mistake: Those are the most haphazardly secured cases of nitro I've ever seen in a movie. Couldn't they spare a shoelace or duct tape to secure the top?
Character mistake: When Carolyn first addresses Imam, she quite obviously pronounces his name "ell-mom," as though the capital I in his title were a lower-case L. It should be pronounced "ee-mam". We distinctly hear Ali call out his name in this fashion after the ship crash lands on the planet.
Character mistake: When Boris and Natasha (Jason Alexander and Renee Russo) are at the airport (just missing Rocky, Bullwinkle and the FBI agent) Natasha says something about "Moose and Squirrel don't even know our names", yet earlier in the courthouse scene, Bullwinkle says something about Boris and Natasha being real people and Rocky and Bullwinkle still being cartoons.
Character mistake: Wilhelm Keitel was a field marshal, not an admiral as stated during the sentencing.
Character mistake: Patrick, being the music buff that he is, mistakenly claims that Huey Lewis' Fore! came out in 1987, when it was actually released in 1986.
Character mistake: After Charlie and Irene leave the Rhode Island station for New York, the female officer refers to her boss as Captain, when he is a Colonel.
Character mistake: James Lear is described as a Sophomore Lit major in the first scene, and at the end of the movie at Word Fest as a Junior.
Character mistake: When Malena gets out of her house and walks toward the kids, the right part of her hairstyle changes scene by scene.
Character mistake: After learning by telephone that he would be part of the Monkees and making records and a TV series, Mike says, "Man, it's a win-win situation." That expression was not in use in 1965; it didn't become widely used until the early 1980s.