Factual error: Dr. Dolittle is driving through San Francisco with a cup of Dunkin' Donuts coffee - there are no Dunkin' Donuts in San Francisco.
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.
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.
Answer: Geno deliberately broke Mark's nose during the party after Mark made a snide remark. After the party, when Mark suggested a way to have John committed and still get their money, Geno had enough of Mark's ignorance and punched him in the nose again to add further insult to injury.