Factual error: At the end when Ben Willis and his son have Julie at the graves, Ray shows up with a gun. He fires at Ben but there is no bullet in the chamber. Later after the fight between Ray and Ben's son Julie picks up the six-shot gun and fires 8 shots at Ben.
Continuity mistake: When the Dude is in Jackie Treehorn's estate, he pencils over a pad of paper to see what Jackie wrote down while he was on the phone. He then hurriedly crumples up the piece of paper and shoves it in his wallet. Then, when we see the Chief of Police of Malibu looking through the contents of The Dude's wallet, the paper is there, neatly folded in fourths.
Plot hole: The first time they communicate with the "entity" in the spaceship, they find a correspondence between numbers sent by the entity and letters of the alphabet. The entity presents itself as "Jerry". Later on, the entity tells Dustin Hoffman, "Stop calling me Jerry" - and then Dustin Hoffman realizes that the number-letter correspondence was wrong, and the actual name of the entity was "Harry". But if that is true, how could they have communicated without problems before? The very first word that the entity used was "hello", which would have to be displayed wrong, since it begins with an "h" and has an "e".
Continuity mistake: When Marcia Gay Harden is doing the final preparations for the party that night, she and Anthony Hopkins have a dialogue where they talk about favorites and children. Towards the end of the dialogue, she hugs him and the watch on her wrist says something like 10am. A minute later she hugs him again and the watch now says 12:25.
Visible crew/equipment: About half the way through when Paul Newman is sitting on a seat in the police station with James Garner, the boom operator and another guy scratching his head can be seen to the left of Newman in the marble wall. It is fairly obvious taking up a 1/3rd of the screen. Also in the same time when Newman is walking through the halls of the police station with Stockard Channing a whole heap of movie posters can be seen on the walls like they used the offices of a movie studio as a police station.
Deliberate mistake: When the CA. trooper is at the front of her car, the Arizona license plate is shown. In 1989, Arizona began issuing a single license plate and that plate is always on the back of the vehicle. This is deliberate, as the remake follows the original movie shot by shot, and there the trooper checks the front license plate.Dennis Gannon