In the early days of the film industry, it was hard to find a good scream. Before the invention of sound bites, directors who needed a blood-curdling shriek from actors often got rather paltry sounding yelps. That is, until Private Wilhelm entered the scene. In the 1951 war classic Distant Drums, a soldier is dragged under water by an alligator as he wades through a treacherous Florida swamp. After the filming was completed, sound engineers recorded a series of screams that were added during post-production. Two years later, in The Charge at Feather River, a soldier named Private Wilhelm (played by Ralph Brooke) takes an arrow in the leg. Similar…