Science fiction is quite simply one of the most popular genres of film that we have. The creation of faraway places and futuristic technology seems to be exactly what the medium of film was designed to create. Sci-fi on film has been around for as long as there have been movies. But which ones are the best? Figuring that out is a nearly impossible task. But, we’re going to try and do it anyway.

If you’re a lover of science fiction in film, there’s a good chance some movies you love are on this list. Perhaps if you’re not as familiar with the genre, this could be a guide, giving you some ideas of where to start a journey into space and time. From all-time classics to modern blockbusters, here’s a look at the 35 sci-fi movies that we think are the best of all time.