Production

—		That's Amore! … Executive Producer
—		Inversion … Executive Producer
—		Saint Clare … Executive Producer

2023

… Executive Producer

2021		Best Sellers … Executive Producer
2021		Willy's Wonderland … Executive Producer

2020

… Producer

2018

… Producer

2014

… Producer

2013		Lone Survivor … Executive Producer
2013		2 Guns … Executive Producer

2012

… Executive Producer

2011		Flypaper … Producer
2011		The Ledge … Producer

2009		Universal Soldier: Regeneration … Executive Producer
2009		Beyond a Reasonable Doubt … Producer

2008

… Executive Producer

2007

… Producer

2005

… Executive Producer

2004		Beyond the Sea … Executive Producer
2004		The I Inside … Producer

2003		Monster … Producer
2003		11:14 … Executive Producer

2002

… Executive Producer

2001		The Musketeer … Executive Producer
2001		The Body … Executive Producer

2000

… Executive Producer

1999		Grizzly Falls … Executive Producer
1999		Eye of the Beholder … Executive Producer

1998

… Executive Producer

1997		Loved … Executive Producer
1997		Deceiver … Executive Producer
1997		The Blackout … Executive Producer

1994

… Executive Producer

1991		Diary of a Hitman … Executive Producer
1991		Inner Sanctum … Executive Producer
1991		Beastmaster 2: Through the Portal of Time … Executive Producer

1990		Vietnam Texas … Executive Producer
1990		Dark Angel … Executive Producer

1989

… Producer

1988		High Spirits … Executive Producer
1988		Mac and Me … Executive Producer
1988		Bat★21 … Co-Producer

1987

… Co-Executive Producer

1986		Flight of the Navigator … Executive Producer
1986		Short Circuit … Executive Producer
1986		8 Million Ways to Die … Executive Producer
1986		Nine 1/2 Weeks … Producer
1986		The Clan of the Cave Bear … Executive Producer

1984

… Executive Producer

1977

… Executive Producer

1974

… Producer

Acting

1997

as Wayland’s Father

1974		There Is No 13
1974		Bang, and the Angels Sing as Fairbanks

1973		The Devil's Wedding Night as Karl Schiller/Franz Schiller
1973		Hannah, Queen of the Vampires as Peter
1973		Little Mother as Riano

1972		They Call Him Veritas as Veritas
1972		Byleth as Duke Lionello Shandwell
1972		Great Treasure Hunt as Dean Madison
1972		I leoni di Pietroburgo as Eldar
1972		Secret Confessions in a Cloistered Convent as Domenico

1971		This Freedom to Have... Wet Wings as Pierre
1971		Pistol Packin' Preacher as Slim
1971		Ivanhoe, the Norman Swordsman as Ivanhoe
1971		Long Live Robin Hood as Allen

1969

as Guido Valeri

1968		Dead Men Don't Count as Johnny Dalton
1968		Anzio as Wally Richardson
1968		Go For Broke as Johnny Sweet/West
1968		The Young, the Evil and the Savage as Richard Barrett
1968		A Train for Durango as Brown / Samuel Lee Barrett / Elias MacPherson

1967		Colpo doppio del camaleonte d'oro as Vittorio
1967		Death at Owell Rock as Lawrence
1967		Kill and Pray as George Bellow Ferguson

1966		Johnny Yuma as Johnny Yuma
1966		Ringo and His Golden Pistol as Johnny Oro / Ringo
1966		How Do I Love You? as Luis

1965

as Dr. Bardin

1964		Son of Cleopatra as El Kebir
1964		100 Horsemen as Don Fernando Herrera y Menendez

1963		The Tyrant of Castile as Pietro I - Re di Castiglia
1963		Black Sabbath as Vladimire d'Urfe (segment "The Wurdalak")
1963		The Shortest Day as Ufficiale timido (uncredited)
1963		The Young Racers as Stephen Children

1962		The Longest Day as Pvt. Harris (uncredited)
1962		Peccati d'estate
1962		Beauty and the Beast as Eduardo

1960		House of Usher as Philip Winthrop
1960		This Rebel Breed as Frank Serano

1958		The Party Crashers as Twig Webster
1958		Life Begins At 17 as Russ Lippincott

1957

as Tommy Price

1956		Between Heaven and Hell as Pvt. Terry - Co. G
1956		Inside Detroit as Gregg Linden

Writing

1973

… Writer