I not familiar with the website this is from, but somebody's clearly put a lot of work into it. Now, if they'd only do one for the book as well . . . --though I suppose it wdn't be too hard to adapt this one (fixing such deviations as elves at Helm's Deep, the deaths of Saruman and Wormtongue at Isengard, and Elrond's odd journey south). I had thought they'd made one minor error by having Merry accompany Aragorn et al to The Black Gate, which was certainly not the case in the book, but checking the dvds I find this is just my mistaken memory and that these folks got the movie version right.
I wonder how they'd go about representing MEMENTO?