| Title || | Director || | Genre || | Manufacturer || | Type || | Discs || | Notes | |
| On the Waterfront * | Elia Kazan | Drama | Criterion | Blu-Ray | 2 | CC40 | |
| On The Waterfront | Elia Kazan | Drama | Columbia TriStar | DVD | 1 | ||
| Once Upon A Time in America | Sergio Leone | Gangster | Warner Brothers | DVD | 2 | ||
| Once Upon A Time in Mexico | Robert Rodriguez | Action | Columbia TriStar | DVD | 1 | ||
| Once Upon A Time in the West | Sergio Leone | Western | Paramount | DVD | 2 | ||
| Once Upon a Time... in Hollywood | Quentin Tarantino | Drama | Columbia TriStar | DVD/Blu | 1 | ||
| One Flew Over the Cuckoo's Nest * | Milos Forman | Drama | Warner Brothers | Blu-Ray | 1 | Best of Warner Brothers 50 Film Box | |
| One Hour with You * | Ernst Lubitsch | Musical | Criterion | DVD | 1 | Lubitsch Musicals Eclipse | |
| Only Angels Have Wings | Howard Hawks | Drama | Criterion | Blu-Ray | 1 | ||
| The Others | Alejandro Amenabar | Horror | Criterion | Blu-Ray | 1 | ||
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