"When most people think of classics, the films that come to mind tend to be the most popular or most acclaimed flicks that we all know and love. In the sci-fi genre, a typical list of classics would probably include a Spielberg film or two, maybe a Kubrick film, perhaps even a Lucas offering if you're feeling spunky. However, in a galaxy far, far, away, there is a whole other parallel universe of classic sci-fi films that might not receive the same praise as those previously mentioned classics but shine just as brightly in the genre.
Those who are fans of the genre might even be able to catch references or influences of the films in this list scattered about the sci-fi galaxy in clues just waiting for the one true movie buff to discover. So whether the intent is to assimilate sci-fi knowledge, acquire the ability to drop movie knowledge on your friends, or simply find some damn good sci-fi films to watch for a change, this is the list for you."