Sony has introduced the new Memory Stick Duo Entertainment Pack that includes the ability to unlock 1 of 4 movies for playback on the Sony PSP.  The package allows PSP owners to play back from the memory stick one of the following movies, Hitch, S.W.A.T., The Grudge, or XXX: State of the Union.  The Memory Stick Duo Entertainment Pack comes in 1 and 2 GB sizes and retails for $60 and $100.  A 1 GB Memory Stick Duo without a movie currently goes for about $60 at Bestbuy, making the Entertainment Pack a good deal.  Sony is definitely starting to take steps in the right direction for distributing movies for the PSP.