| Milfy | — | 2023 | 1 |
| Milk and Honey Pictures | Prague | February 29, 2000 | 1 |
| Milk Pictures | — | — | 1 |
| Millar/Gough Ink | Irvine | 1995 | 1 |
| Millennium Film Oy | — | — | 1 |
| Mills James | — | 1984 | 1 |
| Minerva Film | Copenhagen | — | 1 |
| Ministry of Culture and Information of Kazakhstan | Astana | October 29, 2004 | 1 |
| Ministry of Culture of France | Palais-Royal | 1959 | 1 |
| Minnow Mountain | Austin | — | 1 |
| Minxin Film Company | Shanghai | 1922 | 1 |
| Miracle Pictures | Santa Monica | — | 1 |
| Mitteldeutsches Filmkontor | Leipzig | — | 1 |
| Miyu Productions | — | May 2009 | 1 |
| MMG | Asse | — | 1 |
| Mobra Films | Bucharest | — | 1 |
| Modern Studios | Stockholm | — | 1 |
| Moiré Films | — | — | 1 |
| Mojang Studios | Stockholm | 2009 | 1 |
| Mojave Desert | — | — | 1 |
| Moladat Studio | — | 1927 | 1 |
| Momentum Pictures | — | 1996 | 1 |
| Monarch Media (United States) | Santa Cruz | — | 1 |
| Monkey Pack Films | Boulogne-Billancourt | — | 1 |
| Monolith Films | Warsaw | January 11, 2002 | 1 |
| Monsta Studios | Malaysia | September 15, 2009 | 1 |
| Monster Media | Oslo | 2001 | 1 |
| Monster Union | — | 2016 | 1 |
| Mook Animation | Suginami | 1986 | 1 |
| Moskino | Moscow | — | 1 |
| Motion Pictures, S.A. | London | 1968 | 1 |
| Motovun Film Festival | — | 1999 | 1 |
| Mount Street Film | — | — | 1 |
| Mountain River Films | Kathmandu | 2010 | 1 |
| Movie Central | Toronto | February 1983 | 1 |
| Movie Masters | — | — | 1 |
| Moviola Film och Television AB | — | — | 1 |
| MS NOW | 30 Rockefeller Plaza | July 15, 1996 | 1 |
| MTL Maxfilm | Warsaw | 1992 | 1 |
| MTM Enterprises | — | 1969 | 1 |
| MTV Channel | Colombo | 1992 | 1 |
| MTV Entertainment Studios | Hollywood | 1991 | 1 |
| Mundial Film | Barcelona | 1925 | 1 |
| Murmur | — | — | 1 |
| Mutante Filmes | — | — | 1 |
| My Deer Films | — | — | 1 |
| Mythberg Films | Budapest | — | 1 |
| Méditerranée Cinéma Productions | — | — | 1 |