Don't hate a movie.

When I was a kid my parents have this habit of mocking me (in a benign silly way) when I said I hated something. THey repeated it but making the word "hate" sound ominous.

"Oh, so you HATE this TV show?"

It goes to say that words matter. You disliked (or heavily disliked) the movie.

You hate a horrible person that's doing horrible things.

Hatred is such a strong visceral emotion.

You don't hate a silly thing.

And if you truly do, then you need to work on your emotions most likely, because it's bad for you that you let yourself feel pure real hatred towards a movie that was (according to your words) just bland.