Continuity mistake: in the scene where Horst Buchholz confronts the girl that was spying on him along the stream, her hair (braids) change position. When he first stops her and she begins to struggle and slapping him, he grabs her wrists. At first the shot is from behind her back and both braids are behind her. When the shot changes to face her over his shoulder one braid is on her chest.
Trivia: "The Magnificent Seven" is a remake of the famous 1956 Kurosawa film "The Seven Samurai". It was surprisingly easy to translate the characters from Samurai to cowboys, because the myth of the old west is very similar to the myth of feudal Japan. Some would even argue that the cowboy myth was created from Japanese history.