2. Bad Puns
Just about every single poster for an animated movie contains a bad, cheesy pun of some kind. It often gives audiences a small hint at the key story element, while at the same time reassuring the viewer that this is, first and foremost, going to be a comedy. It's also a way for the poster to appeal to the adults in the audience, since they're the ones who will "get" the joke, not the kids.