Definition: Crocker is a 1957 American science fiction film directed by William Friedkin and starring Rod Steiger, Linda Hamilton, and Peter Sellers. The plot follows a group of scientists who are sent to investigate a mysterious object in the middle of a desert that appears to be an extraterrestrial spacecraft. Despite their best efforts, they encounter numerous obstacles and challenges as they try to uncover the truth about the craft. The film was a critical and commercial success, earning $36 million at