The Misfits - one of the greatest films of all time

Marilyn Monroe and Clark Gables last film:

The trio of men -- Langland, Guido, and reckless, worn-out, injured 'rodeo cowboy' rider Perce Howland (Montgomery Clift) -- team up to go after a herd of wild horses in the desert highlands for a last roundup, and they take Roslyn along. After Guido's small airplane guides and terrorizes the animals down from the hills, the others lasso and roundup the 'misfit' horses from a speeding pick-up truck.

Roslyn is ultimately shocked to learn that these free and wild horses will be slaughtered and cheaply sold to a dog food company for pet food. She hysterically screams at them, accusing them of being murderers - in a dramatic long shot - gesturing and attempting to persuade Langland to call off the roundup. When he refuses, she successfully appeals to Perce to release the horses that have already been captured. This infuriates wrangler Langland, who recaptures the stallion leader of the horses after a rough struggle. [Sources claim that Gable's subsequent heart-attack, only about two weeks after filming ended, was due to executing his own strenuous, bronc-busting stunts without a double.]

After he has proved that he is the boss, he then decides to let the horses free, thereby reconciling with Roslyn:

Don't want nobody makin' up my mind for me, that's all. Damn 'em all! They changed it, changed it all around. Smeared it all over with blood. I'm finished with it. It's, it's like, like ropin' a dream now. I just gotta find another way to be alive, that's all. If there is one anymore. (He stands). Perce, cut that mare loose for me, will ya?

(from http://www.filmsite.org/misf.html)

The roundup ends up as a financial failure, but from the ordeal, Roslyn and Langland make a new start together. In the final scene from the front seat of a pick-up truck, Roslyn asks Langland:

Roslyn: Gay, if there could be one person in the world, a child who could be brave from the beginning - I was scared when you asked me, but I'm not so much now. Are you?
Gay: No.
Roslyn: How do you find your way back in the dark?
Langland: (pointing to the nighttime sky) Just head for that big star straight on. The highway's under it - it'll take us right home.