Above all, I love watching the classics. They're fun and well-written and some of our most popular movies are remakes of classics that were just as well done (if not better) in the original.
I also grew up watching any and every sci-fi and action movie I could. Star Trek, Star Wars, Lord of the Rings and any superhero movies.
I also read a lot so I will often watch depictions of books even well they aren't so great, because I'm so curious to see how they depict the details of the book (and very few movies ever get it right).
And lastly, I have three kids so I end up watching lots of Disney and animated movies.