i read in a preview of the GBA a while before it came out that nintendo said yes the GBA has enough graphical and processor power to run FMV on the GBA, but they said that developers would need a miracle of compression to get anything substancial in length of FMV onto a GBA cart, in other words sure it can be done, but right now dont even think about seeing more then 5 or maybe 10 minutes of video, besides just a GBA cart like that would cost at least twice as much as a DVD movie cuz the more memory on a cart, the more it costs to manufacture the cart