Movies of Sam O'Brien and Maggie Costain together

Sam O'Brien and Maggie Costain have starred in 1 movie together. Their first film was The Cowboys in 1972..

Use the timeline above to view all the movies that Sam O'Brien and Maggie Costain have starred in together. You can use the arrows or the arrow keys on your keyboard to slide from left-to-right along the timeline. If you have a touch device, you can slide left-to-right as well.

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