Oasis of the Zombies (1983)
Oblivion (1994)
The Oblong Box (1969)
The Octagon (1980)
Octaman (1971)
Octopus (2000)
Octopus 2: River of Fear (2002)
Odin: Photon Space Sailer Starlight (1986)
Oddball Hall (1990)
Of Unknown Origin (1983)
The Offence (1973)
The Offspring (1986)
The Old Dark House (1932)
The Old Dark House (1963)
Old Mother Riley Meets the Vampire (aka My Son the Vampire & Vampire Over London) (1952)
Oldboy (2003)
Ololer Konusmazki (aka The Dead Don’t Talk) (1970)
Omega Cop (1990)
Omega Doom (1996)
The Omega Man (1971)
The Omen (1976)
On Any Sunday (1971)
On Deadly Ground (1994)
On the Beach (1959)
On the Town (1949)
Once A Hero (1987)
Once a Thief (1990)
Once a Thief (1996)
Once Upon A Girl (1976)
Once Upon a Time in China (1991)
Once Upon a Time in Mexico (2003)
The One (2001)
One Body Too Many (1944)
One Man Jury (1978)
One Million B.C. (1940)
One Million Years B.C. (1966)
Operation Condor (aka Armor of God 2) (1990)
Operation Condor 2 (aka Armor of God) (1986)
Operation Petticoat (1959)
Orca (1977)
The Ordeal (aka Calvaire) (2004)
Orgy of the Dead (1965)
Orgy of the Dead (aka La Orgia de Los Muertos) (1972)
Orgy of the Vampires (1973)
The Oscar (1966)
The Other (1972)
The Other Hell (1980)
The Others (2001)
Our Man In Marrakesh (1966)
Out of Sync (1995)
Outland (1981)
Outlaw Force (1987)
Outtakes (1987)
Overdrawn at the Memory Bank (1985)
Overkill (1996)