ok I think I've got it.

1. Quick Change, Geena Davis. I haven't seen the movie so I'm not sure, but Davis has won an Oscar, and it fits.
2. Randy Quaid, Vegas Vacation. He was in Quick Change with Davis, and also in Vegas Vacation.
3. Jerry Weintraub was the producer. He also produced Ocean's Eleven.
4. Elliot Gould was in Ocean's Eleven. He played Harry Greenberg in Bugsy.
5. The wording here confuses me, and I've been stuck for a long time. However, I think you may be talking about Francis Ford Coppola, and the Godfather series. Thanks to Debby Meister for a tip here.
6. Coppola did American Graffiti, which featured Wolfman Jack, who is in the Radio Hall of Fame. As is Dick Bartley, a CCGTCC member.