Personally I think you can tell a lot about a person by the movies theg watch, what does everyone think?
Hmmm I dunno...like you'd think someone is super smart if they watch a lot of documentaries but I know lots of super smart people that watch cartoons
High intelligence is correlated with depression, so intelligent people may watch a lot of cartoons to laugh a bit. Unless the cartoon they're watching is Bojack Horseman. In that case, they're completely lost to pathos and there's no hope for them!
As a movie lover, their taste tells me quite a bit about their personality. I wish there was a dating site where you could evaluate a potential date by the movies they watch.