Dazed & Confused.

Boogie Nights.

Inherent Vice.

JFK.

Nashville. (The movie -- country music in the 1970s)

M*A*S*H

Bob&Carol&Ted&Alice

Shampoo.

The Graduate.

American Graffiti.

Smile (1975 movie)

Network.

Targets (1968 movie)

Model Shop

The Limey (set in LA during the '90s, but very much about the '60s)

Hickey & Boggs

Bullitt.

Point Blank.

The Long Goodbye.