“Paint Your Wagon” shot outside of Baker City, filming between May and October, 1968 – a western musical film starring Lee Marvin, Clint Eastwood, and Jean Seberg, adapted by Paddy Chayefsky from the 1951 stage musical by Lerner and Loewe. “Wagon”was set in a mining camp in Gold Rush-era California, although the actual location of the main set was close to Baker City, and the Eagle Cap Mountains along East Eagle and Jack Creek.
“The film was released at a time when movie musicals were going out of fashion, especially with younger audiences. Its overblown budget and nearly 3-hour length became notorious in the press. Eastwood was frustrated by the long delays in the making of the film, later saying that the experience strengthened his resolve to become a director. According to Robert Osborne, Marvin drank heavily during the filming, which may have enhanced his screen appearance, but led to delays and many retakes.” BHM.