Directed by: Peter Hewitt
Starring: Bill Murray, Jennifer Love Hewitt, Breckin Meyer, Stephen Tobolowsky
Factual error: When John is talking on the phone to someone who found a dog, he says something about Odie not being a hound dog, and how sure he was. Odie is part wirehair Dachshund (you can look it up - plus I own Dachshunds), which is from the hound breed.
Factual error: Garfield enters the train control room at Los Angeles Union Station when the only employee in the room leaves the room. There would always be someone in this room when the trains are in operation.
Other mistake: Jon's Volvo back license plate number in the first half of the movie is T03-851. When he and Dr Liz are looking for Odie, his front license plate number is I35-749. As they are pulling up to the train station, the Volvo in front of them also has the plate I35-749.
Trivia: Bill Murray agreed to be in the film without reading the full script upon seeing the name "Joel Cohen" listed as a writer. It turns out he thought he was signing onto a film co-written by "Joel Coen" of the Coen Brothers fame. It wasn't until he began recording his lines sometime later that he realised his mistake.
Answer: He's a cartoonist.