Continuity: When he has the accident after hitting the dog, there is a big very noticeable dent in his truck. After he leaves the camp place it is gone and never seen again.

Factual error: Dr. Dolittle is driving through San Francisco with a cup of Dunkin' Donuts coffee - there are no Dunkin' Donuts in San Francisco.

Deliberate "mistake": In the scene where Maya is looking for Rodney at the party and he scampers off into the bathroom, he miraculously climbs on top of a toilet in a matter of seconds (which isn't actually shown). There is no way a guinea pig could do this.

Continuity: In the scene where Eddie is driving to the circus and talking to Lucky, sometimes he's wearing his seat belt, and sometimes he's not.

Revealing: When Dolittle is called in the middle of the night to give Miss Parker her injection, watch the injection: When Dolittle pulls the injection equipment away from her fat leg, the needle is gone.

Factual error: There are a few things wrong with the swan egg that Maya has found. First, in the opening scene we see that the egg is a hard-shelled egg, and it appears much too large for a swan egg. Second, at the end of the film, the egg hatches to reveal a baby alligator. Alligator eggs are soft shelled. Third, alligators are not native to San Francisco, but the southeastern United States.

Continuity: When John returns from the hospital, Maya is sitting down, then stands up. The camera then goes onto John, then back to Maya, then she stands up again.

Continuity: In the scenes where Eddie Murphy was committed and talking to Blaine (and several other spots in the movie), he was very obviously wearing a very bad wig to try and look like braids. You can tell it's his own hair in the scenes where he is talking to the patients and/or his partner.

Factual error: There is a scene in which the tiger gets out of the back of the jeep, but the suspension is not altered on its departure.

Continuity: When Dolittle is a boy and his father sends the dog away, they show him crying, a single tear is coming down the right side of his face. The scene then shifts to the dog and back to young Dolittle. The single tear is now on the left side of his face.

Continuity: In the scene when John is talking to the vet about Lucky, watch the vet's hand on Lucky's tail. It moves from the base in one shot to the middle in another. This happens several times. Also, the tail changes length and fur color.