The 1971 version, of course. The Fox remake is horrible, although I admittedly do have a VHS copy just because of the Challenger. The cover of the DVD I got at Wal-Mart is the same as my avitar, which I liberated from capitalistic oppression on amazon.com. Also, it includes both the version that was released in the U.S. and the British version, which includes the missing Charlotte Rampling scenes.