Scenarist
- Tulsa King (2022)
- Rambo: Last Blood (2019)
- Creed II (2018)
- Creed (2015)
- The Expendables 3 (2014)
- Homefront (2013)
- The Expendables 2 (2012)
- The Expendables (2010)
- Rambo (2008)
- Rocky Balboa (2006)
- Driven (2001)
- Cliffhanger (1993)
- Rocky V (1990)
- Cobra (1986)
- Rocky IV (1985)
- Staying Alive (1983)
- Rocky III (1982)
- Rocky II (1979)
- Paradise Alley (1978)
- F.I.S.T. (1978)
- Rocky (1976)
Filmografie - altele
