- Inside the Walls of Folsom Prison (1951)
- Inside the Whore (2012)
- Insider, The (1999)
- Insidious (2010)
- Insidious: Chapter 2 (2013)
- Insidious: Chapter 3 (2015)
- Insidious: Chapter 4 (2018)
- InSight (2011)
- Insignificance (1985)
- Insomnia (1997)
- Insomnia (2002)
- Insomnium (2017)
- Inspector Clouseau (1968)
- Inspector Gadget (1999)
- Inspector Gadget 2 (2003)
- Inspector Zenigata (2017)
- Instant Family (2018)