O Brother, Where Art Thou? (-2)

Ocean's Eleven (+3)

Ocean's Twelve (+1)

Octopussy (+3)

Office Christmas Party (+1)

Old (-1)

Oldboy (+4)

Old School (+2)

The Omen (-3)

Once (+4)

Once Upon a Time in China (+3)

Once Upon a Time in Hollywood (+3)

Once Upon a Time in the West (+3)

One Hour Photo (+1)

One Night at McCool's (-1)

One Night in Miami (+3)

One Night with the King (-3)

Ong-Bak (+2)

On Golden Pond (+2)

On Her Majesty's Secret Service (+3)

On the Waterfront (+4)

Open Water (+3)

Operation Petticoat (+2)

The Other Guys (+2)

Our Idiot Brothers (+2)

Out of Africa (-1)

Out of Time (+2)

The Out-of-Towners (+1)

The Outfit (+3)

Over the Hedge (+2)