Sylvester Stallone
Stallone's first work as a director came in 1978 with Paradise Alley, which he wrote and starred in. He also directed Staying Alive (the sequel to Saturday Night Fever), along with Rocky II, Rocky III, Rocky IV, Rocky Balboa, and Rambo.  Stallone wrote all six Rocky films, He also wrote Cobra, Driven and Rambo. He has co-written several other movies, such as F.I.S.T., Rhinestone, Over the Top and the first three Rambo movies. His last major success as a co-writer was with 1993's Cliffhanger.