Well, its just like asking is this movie an action film or a sci-fi film? Star Wars has plenty of action, if it was done with samurai and/or jet fighters its labled as Action but since its setting is changed then its considered Sci-Fi because its more unique of the two.
I really don't think movies like Pearl Harbor, Mummy, etc... are cartoons because that isn't the thing that stands out the most (Well, the final special effects in Mummy 2 stand out - as an example of crappy CGI!).
Many movies are categorized under multiple things, a film liek Final Fantasy would be both Sci-Fi & Animated.
"Treason doth never prosper, what's the reason? For if it prosper, none dare call it treason."
Sir John Harrington (1561-1612)