Here is a beautiful poster series from Dean Walton which celebrates classic sci-fi films like 2001: A Space Odyssey, Alien, E.T., The Terminator and Blade Runner. I would have loved to see a poster for Star Wars and Star Trek, but these are awesome.
Check out the images below:
As usual, each of these posters a being printed in a limited edition of 100. They can be purchased for 20£ ($32.17) or 25£ ($40.21) depending on the size you get. They come in two sizes - A2 is 16.5" x 23.4" or A1, slightly bigger, at 23.4" x 33.1". You can buy the entire series of five for 75£/90£, if you have money to splurge.