Absolutely Humorless
Just a warning for anyone like me who's always heard about this film but never seen it - and I'm Diane Lane's age (now!) - there's a lot to take in here, but it is unrelenting in the avoidance of anything that might crack a smile, nevermind a chuckle (excepting Black Randy, but you'd have to know about him beforehand, and so few do.) There's a media message parallel with an early 80's Sean Connery film called "Wrong is Right" - watch it to see how a few bellylaughs make the cynicism sharp.
From Nancy Dowd ('Slapshot') and Lou Adler (lots of Cheech & Chong vinyl, natch), I expected at least a token lighthearted moment or two - forget it. The few steps this film even tries to take there (the Newscasters) make things even more Vayyy-Cant...An amazing time machine back to young Ray, Diane and Jones 'n Cook (Simenon looks about 54!), but it's the cinematic definition of dour.