This sticker was kind of tricky to get. I couldn't find a definitive list of the best SciFi movies, compiled by Cinematical. No problem, though. It wasn't too hard to figure out.
You need to like and check-in to 3 of their top 10 sci-fi movies. I am certain that Blade Runner is one of them because that is the last one I checked into before I got the sticker. Here are some other sci-fi movies I had checked into recently: Alien, Aliens, Terminator 2, Brazil. Good luck!