This film contains the first known instance of "The Wilhelm Scream". During a scene in which the soldiers are wading through a swamp in the everglades, one of them is bitten and dragged underwater by an alligator. The scream for that character was recorded later. Six short pained screams were recorded in a single take, which was slated "man getting bit by an alligator, and he screams." The fifth scream was used for the soldier - but the 4th, 5th, and 6th screams recorded in the session were also used earlier in the film when three Indians are shot, one after another, during a raid on a fort. Although the "signature" or "classic" screams, takes 4 through 6 on the original recording, are the most recognizable, all of the screams are referred to as "Wilhelm" by those in the sound community. Ben Burtt, sound effects designer on Star Wars, named it "Wilhelm" after the character that let out the scream in The Charge at Feather River. He discovered a file at Warner Bros. for this movie, which contained paperwork that was left over from the picture editor when the film was completed. One of the papers was a short list…