Robert Towne's "Chinatown" is considered the greatest script of the past 30 years, but I think "Shampoo" (written by Towne and Beatty) is even better. It is an intricately constructed sex farce, with realistic, flesh-and-blood characters. Beatty's character, George, is trying to serve two masters -- his own uncontrollable libido, and his desire to set up his own hair salon. These two desires come into direct conflict when he seeks funding from wealthy financier Lester (Jack Warden), while also having affairs with Lester's wife Felicia (Lee Grant), Lester's mistress Jackie(Julie Christie), and even Lester's daugther (Carrie Fisher). In fact, George beds all of these women in a 24-hour period, while also trying to maintain his relationship with his steady girlfriend (Goldie Hawn). All of these incompatible desires are compressed into a short time frame, and George's life unravels spectacularly, as he learns some very hard lessons by the end.
Structurally, "Shampoo" is brilliantly devised. Each character has an opposite. George, the satyr, has Lester, the cuckhold, as his opposite. George exudes natural sexual appeal, whereas Lester is loved merely for his wealth. Tony Bill's character, an ad executive, is the younger version of Lester. Tony Bill dangles a job offer to Goldie Hawn in order to bed her. Despite his hip outward appearance, this character is as staid as Lester. In fact, the two characters are linked by separate scenes in which each one stares out of a skyscraper window, gazing at a panoramic view of L.A., and makes a world-weary comment about the craziness below (in Bill's case, he says, "Jesus, this town"). There is also a contrast between George and Jackie. George, in his own words, "doesn't f*** for money, I do it for fun," whereas Jackie ends up as a kept girl (by Lester). Goldie Hawn's character also prostitutes herself, in a very subtle way. In the moral universe of Beverly Hills in 1968, Beatty's promiscuity seems more pure than the money-driven machinations of everyone else.