Kurt Russell and Charles Bronson

 A young Kurt Russell worked together with Charles Bronson. During shooting, Russell found out it was Charles Bronson's birthday. So he got his older costar a gift. Bronson looked at it, took it... then walked out of the room, without saying a word. Russell was terrified, worried he had insulted the man.

A little while later, Russell was called to the dressing room of Bronson. Bronson was silent, looked down and said to the child actor: "No one has ever given me a birthday gift before.." Charles Bronson was the son of dirt poor immigrants. He had fourteen siblings, and worked in the mines as a child. Never finished schooling, never had a kind word, he was worked like a mule since the day he learned to walk.

Charles Bronson hadn't known a lot of kindness in his life. It caught him off guard to receive some from his young co-star. He later gave Russell a skateboard on his own birthday to play with between takes. The two men remained lifelong friends.