I've watched many many movies more then once. And I have watched plenty movies three, four and even five times.
The great sci/fi movie ever made, 2001, I actually saw four times within 18 months of it being released in 1968. While a fantastic movie, I was enthralled with it, but could not like many people, comprehend the gist of it and the message being portrayed. That changed when I finally read the book. Since then I have watched it probably a dozen or more times.
Other top movies I loved and have watched more then once were The Day the Earth stood still [1953] Forbidden Planet from the same era, War of the Worlds [again from the same era] Mission to Mars, Contact, Close encounters, Gravity, Interstellar, The Green Mile, Shawshank Redemption, Casablanca, etc etc etc