Ocean's Twelve = A
Ocean's Thirteen = B+
Office Space = A-
Oliver! = A-
Oliver & Company = B+
On the Town = A-
Once = B+
Once Upon a Time in America = B
Once Upon a Time in the West = A-
One Day in September = B+
Open Range = B+
Open Season = B=
Ordinary People = B+
Out of Africa = B
Over the Hedge = A-