I actually haven't seen a ton of anime movies, but I'd thought would list some of my favorites anyways.

• Galaxy Express 999     

• Summer Wars 

• Kiki's Delivery Service 

• End Of Evangelion

• Spirited Away

• One Piece: Strong World

• Akira

• Cowboy Bebop The Movie: Knockin' On Heaven's Door

• K-On! The Movie

• One Piece Movie 6: Baron Omatasuri And The Secret Island (This was my introduction to One Piece btw....)