Trivia: Near the beginning, when Remy is in the sewers and begins to make his way up to the skyline of Paris, he is startled by a barking dog in one of the apartments. If you pause and look at the silhouette of the dog, it greatly resembles Dug the dog, from the 2009 Disney/Pixar release Up - another precursory nod to an upcoming movie by Pixar. (00:16:35)
Continuity mistake: Right before Chef Skinner exits the kitchen, in an attempt to stop the soup from being delivered, there is no ladder to the right of the door. Then when he re-enters the kitchen, a ladder appears next to the door. (00:25:40)
Other mistake: The soup that Remy starts with is a red tomato soup, but after he "fixes" it, it becomes a white soup. It is impossible to change 10 Gallons of red soup to 10 gallons of white soup with 1 quart of cream, 2 quarts of oil and a handful of herbs. (00:23:30 - 00:24:40)
Suggested correction: The soup turned white only after Remy add some cream in it. It never turned white "instantly", it happened in a process.
Trivia: When Skinner stops chasing Remy, a mime artist is visible in the background. This man is none other than Bomb Voyage, a character from The Incredibles, Pixar's previous production. (01:17:30)
Continuity mistake: At the beginning of the film, Remy and Émile are at the old lady's house. The cooking show comes on TV. In one shot, the TV is facing straight forward, sitting perfectly parallel to the edge of the cupboard. In the next shot, the TV has moved to the left and is sitting at an angle. Watch its relation to the edge of the cupboard.
Trivia: Once again, another reference to "The Incredibles": before Remmy & Linguini go into the kitchen for the first time, Linguini pulls his pants open, and we can see his boxers. His boxers, have the Incredibles logo on them.
Trivia: The "Pizza Planet" truck is briefly seen crossing the bridge over the Seine when Skinner is chasing Remy.
Continuity mistake: Remy is reunited with his father in Paris. They are in a conversation at a little table. Remy's 'cup' moves closer to the edge of the table, towards our left, in several shots.