Inception and Interstellar
I watched Inception and Interstellar. I like the story of Inception more than Interstellar, but I prefer the world setting of Interstellar.
Some other SF movies I've watched in the past are Blade Runner and 2001: A Space Odyssey. I like Blade Runner, and I also read Do Androids Dream of Electric Sheep?, which was my first SF novel.
As for 2001: A Space Odyssey, I couldn't understand it, but I realized that the movie's technology is amazing.