I'm a native US speaker. I use both. There is a slight tendency to say "movie" when we are thinking of it as entertainment, and "film" when we are thinking of it as a serious art form. When we are getting very serious indeed, we might say "cinema." Tom Hanks is a great movie actor. Do you want to go see a movie this weekend? The British Film Institute considers "Citizen Kane" to be one of the greatest films of all time. The Sundance Film Festival is an important US cultural event. I tend to say "movie" when it is not a professional production. I have some home movies my parents made of me when I was a baby.

I use both.

I say both!