| One Wild Oat | Saunders, Charles | "Comedy"
| 1951 | 5 | 2016-05-21 |
| One, Two, Three | Wilder, Billy | "Comedy"
| 1961 | 7 | 2010-08-27 |
| One-Man Band, The | Melies, George | "Comedy"
| 0000 | 6 | 2011-03-06 |
| One-Trick Pony | Young, Robert M. | "Musical"
| 1980 | 5 | 2026-08-18 |
| Onionhead | Taurog, Norman | "War"
| 1958 | 6 | 2025-07-21 |
| Only Angels Have Wings | Hawks, Howard | "Suspense"
| 1939 | 7 | 2005-11-22 |
| Only the Lonely | Columbus, Chris | "Drama"
| 1991 | 5 | 2008-04-08 |
| Only You | Jewison, Norman | "Comedy"
| 1994 | 5 | 2009-08-24 |
| Only You | Thomas, Betty | "Comedy"
| 1992 | 4 | 2011-03-28 |
| Open Range | Costner, Kevin | "Western"
| 2003 | 8 | 2003-08-21 |
| Open Road, The | Meredith, Michael | "Drama"
| 2009 | 5 | 2015-11-14 |
| Operation Bullshine | Gunn, Gilbert | "Comedy"
| 1959 | 6 | 2024-09-25 |
| Operation Crossbow | Anderson, Michael | "War"
| 1965 | 5 | 2011-10-19 |
| Operation Mad Ball | Quine, Richard | "Comedy"
| 1957 | 6 | 2014-07-19 |
| Operation Pacific | Waggner, George | "War"
| 1951 | 6 | 2020-01-23 |
| Operation Petticoat | Edwards, Blake | "Comedy"
| 1959 | 8 | 2007-03-24 |
| Opposite Sex and How to Live with Them, The | Meshekoff, Matthew | "Comedy"
| 1992 | 6 | 2023-06-15 |
| Other End of the Line, The | Dodson, James | "Comedy"
| 2008 | 6 | 2010-11-04 |
| Other Guys, The | McKay, Adam | "Comedy"
| 2010 | 7 | 2011-05-16 |
| Otley | Clement, Dick | "Action/Adventure"
| 1969 | 7 | 2025-09-22 |
| Our Man Flint | Mann, Daniel | "Action/Adventure"
| 1966 | 6 | 2009-09-09 |
| Our Miss Brooks | Lewis, Al | "Comedy"
| 1956 | 6 | 2024-11-13 |
| Out of Africa | Pollack, Sydney | "Drama"
| 1985 | 7 | 2024-08-26 |
| Out of the Blue | Jason, Leigh | "Comedy"
| 1947 | 5 | 2022-12-23 |
| Out of the Past | Tourneur, Jacques | "Suspense"
| 1947 | 6 | 2010-11-18 |
| Out-Laws, The | Spindel, Tyler | "Comedy"
| 2023 | 5 | 2025-05-01 |
| Out-of-Towners, The | Weisman, Sam | "Comedy"
| 1999 | 6 | 2006-01-29 |
| Out-of-Towners, The | Hiller, Arthur | "Comedy"
| 1970 | 5 | 2016-05-24 |
| Outlaw Josey Wales, The | Eastwood, Clint | "Western"
| 1976 | 7 | 2015-05-08 |
| Outlaw, The | Hughes, Howard | "Western"
| 1943 | 4 | 2009-03-25 |
| Outsourced | Jeffcoat, John | "Comedy"
| 2006 | 6 | 2009-10-24 |
| Over Her Dead Body | Lowell, Jeff | "Comedy"
| 2008 | 5 | 2009-09-25 |
| Over the Hedge | Kirkpatrick, Tim Johnson and Karey | "Animation"
| 2006 | 7 | 2007-02-10 |
| Over the Moon | Freeland, Thornton | "Drama"
| 1939 | 6 | 2019-01-19 |
| Overboard | Marshall, Garry | "Comedy"
| 1987 | 7 | 2007-02-10 |
| Overnight Delivery | Bloom, Jason | "Comedy"
| 1998 | 5 | 2023-11-01 |
| Ox-Bow Incident, The | Wellman, William A. | "Western"
| 1943 | 8 | 2019-01-19 |
| Oz the Great and Powerful | Raimi, Sam | "Fantasy"
| 2013 | 6 | 2013-04-29 |
| Pacifier, The | Shankman, Adam | "Action/Adventure"
| 2005 | 6 | 2005-03-25 |
| Pagan Love Song | Alton, Robert | "Musical"
| 1950 | 5 | 2025-08-06 |
| Page Eight | Hare, David | "Suspense"
| 2011 | 6 | 2014-09-13 |
| Page Miss Glory | LeRoy, Mervyn | "Comedy"
| 1935 | 4 | 2023-04-21 |
| Paint Your Wagon | Logan, Joshua | "Musical"
| 1969 | 5 | 2014-01-14 |
| Painting the Clouds with Sunshine | Butler, David | "Musical"
| 1951 | 4 | 2024-09-21 |
| Pajama Game, The | Abbott, George | "Musical"
| 1957 | 5 | 2021-09-12 |
| Pal Joey | Sidney, George | "Musical"
| 1957 | 5 | 2010-08-02 |
| Pale Rider | Eastwood, Clint | "Western"
| 1985 | 7 | 2015-06-26 |
| Palm Beach Story, The | Sturges, Preston | "Comedy"
| 1942 | 6 | 2019-03-18 |
| Palm Springs Weekend | Taurog, Norman | "Comedy"
| 1963 | 6 | 2010-06-16 |
| Pan-Americana | Auer, John H. | "Musical"
| 1945 | 4 | 2026-05-25 |
