It's kind of difficult to specify a "favorite" movie since, for me, it's a moving targer, however movies I have greatly enjoyed include:
The Matrix
Pirates of the Caribbean #1
Treasure Island (1990)
Quigley Down Under
The Shootist
Goldfinger
Funeral in Berlin
Day of the Jackal (1973)
Cars
Ratatouille
Age of Consent
20,000 Leagues Under the Sea (1954)
Star Trek, The Wrath of Kahn
Out of Africa