SMR is the name of the codec you need. Get it here: http://www.divx-digest.com/software/smrcodec.html Don't expect your movie to look very good though.
most tmd movies are pretty shite quality (like worse than VCD)- and most movies are filmed from a camcorder in the theater- REALLY CRAPPILY DONE TOO. you best wait for it to come out on dvd and get a dvd rip. You can use websites like isohunt.com xdccsearch.com packetnews.com or ircspy.com to download good quality rips from IRC (real fast too)