This and that is often "implied" in animated films rather than obvious. Plus, there are quite a few same-sex relationship characters that get past insanely conservative parents who can't even conceive of gay people but, for little kids, are just regular people they see on TV every day. What I mean is...little kids probably see all of what makes the PG rating on TV all the time (being parked in front of the screen by Grandma while Mommy works). However, the film-length animations that are funny (ones I have seen are Up and The Secret Life of Pets) have some mildly scary and overtly sad content.