It stars Michael Keaton and Danny DeVito. Johnny Kelly, played by Keaton, is newsboy working in New York City during the early 1910s. Find out where Johnny Dangerously (1984) is streaming, if Johnny Dangerously (1984) is on Netflix, and get news and updates, on Decider. In a hilarious sendup of gangster movies, Johnny Dangerously joins the Mob to help pay for his sick mother's operations, but when he tries to extricate himself and go on the straight and narrow path, he becomes a target for his rivals and the law. Directed by Amy Heckerling. Looking to watch Johnny Dangerously (1984)? Johnny Dangerously is a satiric take on popular gangster movies. With Michael Keaton, Joe Piscopo, Marilu Henner, Maureen Stapleton. One day he fights with another kid and beats him up, attracting the attention of a crime lord. Watch Johnny Dangerously movie trailer and get the latest cast info, photos, movie review and more on TVGuide.com. Johnny Dangerously - Watch Full Episodes and Clips - TV.com Set in the 1930s, an honest, good-hearted man is forced to turn to a life of crime to finance his neurotic mother's sky-rocketing medical bills. Johnny Dangerously is a 1984 American crime comedy film, and a parody of 1930s crime/gangster movies.It was directed by Amy Heckerling; its four screenwriters included Bernie Kukoff and Jeff Harris..