This video is on the great DVD Indiana Jones And The Kingdom Of The Crystal Skull. I actually loved the film. I thought it captured the comic book/saturday morning cinema dramas that the other Indy movies were. But in this video Spielberg explains his reservation of using the subject of Aliens in Indy 4. Spielberg refused to do an Indy film with aliens hence the long wait we had. In the end George Lucas came up with the idea of the aliens being inter-dimentional rather from outer space. Steven agreed that would be a better idea and Indy 4 was GO! Just glad they didn't call it Indiana Jones And The Saucer Men which was one of the suggestions.