Paint Your Wagon (1969)

Marvin and Eastwood star as California prospectors during the Gold Rush of 1849-50. Eastwood is the calm, restrained one; Marvin is noisy and rambunctious. Marvin buys a wife, Seberg, from a local Mormon. Then, to make sure the lonely local miners will leave his new bride alone, he hijacks a wagonload of prostitutes and takes them to the prospectors in the mining town he has founded, No Name City, setting them up for business at a saloon. While Marvin is away, Eastwood and Seberg fall for each other; but when Marvin returns and discovers the affair, Seberg declares that she'd like them both as husbands.