According to IMDB and its users, here is the top movie of each year for the last 25 years. Inside Out is currently sitting pretty for the top movie of 2015, but there's still a lot of flicks to hit the silver screen. Things could certainly change.
2014: Interstellar
2013: The Wolf of Wall Street
2012: Django Unchained
2011: Intouchables
2010: Inception
2009: Inglourious Basterds
2008: The Dark Knight
2007: Into the Wild
2006: The Departed
2005: Batman Begins
2004: Eternal Sunshine of the Spotless Mind
2003: The Lord of the Rings: The Return of the King
2002: The Lord of the Rings: The Two Towers
2001: The Lord of the Rings: The Fellowship of the Ring
2000: Memento
1999: Fight Club
1998: Saving Private Ryan
1997: Life Is Beautiful
1996: Fargo
1995: Se7en
1994: The Shawshank Redemption
1993: Schindler’s List
1992: Reservoir Dogs
1991: The Silence of the Lambs
1990: Goodfellas