The LA Times has their list. I have mine.
1. City Lights (1931). My favorite Chaplin movie.
2. The Odd Couple (1968). Everyone should see this movie.
3. Before Sunset (2004). A not so cheesy romance.
4. Zodiac (2007). I love Mark Ruffalo.
5. Finding Nemo (2003). Not necessarily my favorite animated movie, but the one I can watch over and over and over.