'The Electric Horseman' (1979)
"I don't know about you, but I'm gonna get me a bottle of tequila, find me one of them keno girls that can suck the chrome off a trailer hitch and just kind of kick back." With those lines, Willie Nelson made his feature-film debut unforgettable. Costarring as Wendell, the cowboy buddy of washed-up rodeo champ Sonny Steele, played with verve by Robert Redford, Nelson stole his scenes. Whether encouraging Steele to saddle up after one too many drunken nights or ruminating on how media folks — like Jane Fonda's Hallie Martin — use people to get what they want, Nelson's Wendell was full of Western wisdom. Of course, director Sydney Pollack couldn't have a country star on his set and not find a reason to have him sing. When an argument turns heated between Steele and another rodeo pal, Wendell defuses the situation by belting out a few bars of — what else? — "Mammas Don't Let Your Babies Grow Up to Be Cowboys."