On March 15, 1972, The Godfather hit movie screens. In the  four decades since, it has become acknowledged as one of the greatest movies of  all time. TIME has compiled the most interesting stories, anecdotes and tidbits  from the film's production
It could be said of so many movie moments, but describing the horse-head  scene as one of the most iconic in American film history is no exaggeration. It  was already famous from the book — only in Mario Puzo’s novel, the horse’s head  was on the bedpost when Jack Woltz wakes up. Audiences rose up in anger over the  death of the horse, and many asked if it were a real animal head.
 
Yes, it was. The studio had encouraged Francis Ford Coppola to use a fake  horse head, but he didn’t like the mock-up. His scouts found a horse ready for  slaughter at a dog-food plant in New Jersey. The art director picked one that  looked like the horse in the film and said, “When that one is slaughtered, send  us the head.” Coppola later remembered, “One day, a crate with dry ice came with  this horse’s head in it.”