I think I was just a young girl at the drive-in when my family and I saw that one, Omega Man. It may have been one of those movies -- like the Andromeda Strain -- that saw me way too busy doing pranks and being yelled at to "shut up!" to recall. I remember the Planet of the Apes and all the other '70s disaster flicks, though. I behaved for most of those movies and I remember them. :)
ExSoldier, I just read a synopsis of The Omega Man at Amazon.com; I definitely have no recollection of it (thank you God).