Cobra is a 1986 crime film directed by George P. Cosmatos and starring Sylvester Stallone, Reni Santoni, Brigitte Nielsen, and Andrew Robinson. The film received negative reviews. However it was a theatrical success and debuted at the number one spot on the U.S. box office.
The screenplay by Stallone was originally written for the film Beverly Hills Cop. It was loosely based on the novel Fair Game by Paula Gosling, which was later filmed under that title in 1995. He had wanted to make a less comedic, more action-oriented film. When he left that project, Eddie Murphy was brought in to play the lead role.