I watched Death Becomes Her for the first time since I was a kid and it's still an excellent movie.

I was probably around 8 when I first saw it and as I'd never known anyone who died yet, this might also be how I learned about death. That or the Transformers movie.
I expected to notice a lot of jokes that went over my head as a kid but nope, it's pretty family friendly considering one of the major plot points.

Side note: I really wish this site had a way to completely hide spoilers like reddit.