The titular 'Spaceballs' are a bunch of unscrupulous nutjobs, intent on stealing the air of the beautiful world of druidia to save their own over used homeworld. To this end they capture a druish princess (An extremly light jewish gag that is carried on through the film) who can only be rescued by a space bum called Lone Star and his scruffy man dog pal, Barf! But the evil Dark Helmet is not easily defeated....
Puerile and fun, this purports to be a Star Wars Spoof, but pulls in many other sources along the way including Alien (Complete with John Hurt!) and Star Trek.
This is basicaly the second trailer, but with a voice-over announcer mentioning the movie's imminent theatrical release.
This is a TV teaser for the movie.
This TV spot was originally posted to YouTube by Burninschit.
Found on a DVD copy of Spaceballs.
Originally posted to YouTube by moviesnotseen, this is a trailer for the Special Edition DVD release of the movie.
Originally posted to YouTube by EIMuvimaiker, this is basically the same as trailer 4, only with an introduction by Mel Brooks.