“I’m Chevy Chase And You’re Not” (** out of four) was a one-note documentary on the legendary prickly comedian showing his start on SNL to feature films and celebrity success and his spectacular fall in the 90’s with his disastrous talk show and then his spiral into depression and alcoholism and life-threatening health issues. Not all that revelatory, even though it features interviews with a lot of Chase’s famous friends and co-stars such as Dan Aykroyd, Goldie Hawn, and others. Chase himself often comes off as a self-righteous jerk but maybe that’s the point here. Only the final scenes which show them at a live interaction screening of “Christmas Vacation” have any emotional resonance.