Capone (1975) is an American crime film directed by Steve Carver and the film stars Ben Gazzara, Harry Guardino, Susan Blakely and an early film role for Sylvester Stallone. The movie is a biography of the infamous Al Capone.

The story is of the rise and fall of the infamous Chicago gangster Al Capone and the control he exhibited over the city during the prohibition years. Starting in 1901, he hangs out with other gangs until he is found by gangsters Johnny Torrio (Harry Guardino) and Frankie Yale (John Cassavetes). As the film continues, he pushes his way into the Chicago Underworld, wages war with other mobsters, including Hymie Weiss and George “Bugs” Moran, and romances flapper Iris Crawford (Susan Blakely).

Later, in the wake of the St. Valentine’s Day Massacre and tax evasion, he is sent to jail, mainly for the latter infraction, where he falls sick from syphillis.

Summary via Wikipedia.