Character mistake: Before he scampers inside to spy on the humans, Claudius tells the other animals, "I'm your mouse on the inside!" Maybe he should check a mirror while he's in there. Claudius isn't a mouse - he's a rat.
Garfield: A Tail of Two Kitties (2006)
1 character mistake
Directed by: Tim Hill
Starring: Bill Murray, Billy Connolly, Jennifer Love Hewitt, Breckin Meyer
Continuity mistake: During Garfield's lasagna speech in the kitchen, the gourds on the table keep changing positions.
Trivia: When Odie finds the journal and hands it to Jon, on the masthead it's written: "Gwynnie, Jacko have alien love child", a reference to all the "possible" Michael Jackson's secret love children that weren't actually their sons and daughters. This were one of the fake news referred to Michael Jackson, nicknamed as Jacko (the complete is "Wacko Jacko").