- Mom and Dad Save the World (1993)
PG | Science fiction/Children
- Meteor (1979)
PG | Drama/Action
- Meet Dave (2008)
PG | Comedy/Science fiction
- Meet Dave
NR | Comedy/Romance
- Mongolian Death Worm (2011)
NR | Comedy/Action
- Mothra vs. Godzilla (1964)
NR | Science fiction
- Men Must Fight (1933)
NR | Science fiction
- Megalodon Rising
NR | Action/Science fiction
- Megalodon: The Frenzy
NR | Action/Science fiction
- The Mesa of Lost Women
NR | Science fiction
- The Manster (1962)
NR | Science fiction
- Master of the World (1961)
NR | Science fiction
- The Mysterious Island
NR | Science fiction
- Mars Needs Women
NR | Science fiction
- The Mouse on the Moon
NR | Comedy/Romance
- The Martian: Extended Edition (2016)
NR | Drama/Science fiction