They make them all the time. DCAU are a series of animated strait to DVD/BD movies based onm different DC properties. DC releases a new one every couple of months or so. They've made a couple of Batman ones already. I watched Batman: Year One and thought it was a really good adaption (I did find myself wishing Kevin Conroy did the voice acting for Batman/Wayne. Bryan Cranston as Gordon was freaking amazing though). So I am pretty excited about TDKR (disappointed to see Cranston not returning to do Gordon again). A Batman aminated movie featuring Conroy, Hamill, and Cranston might just be about the best thing ever, but one can only dream.