Director Christopher Nolan's clever, and at times puzzling, thriller Memento is presented on DVD, but the real mystery is why more wasn't done with this acclaimed film on a format that practically invites innovation. On the bright side, the image is first-rate, with an anamorphic transfer framed at the original aspect ratio of 2.35:1. There are few signs that this was a lower budget independent film, as the picture is sharp, with little wear, and constantly conveys the theatrical experience. Offering both Dolby Digital 5.1 and two-channel surround tracks, the sound on this release is also well defined. Though there is a very limited use of the rear speakers, all other sounds are clearly reproduced up front. Fans of this intelligent film highly anticipated a special edition, but their hopes were quickly squashed by the reality that supplemental materials are unfortunately rather thin. The main extra is a 23-minute IFC interview with director Christopher Nolan covering this film, his previous movie Following, and his influences. The remaining features are brief and less interesting, including a comparison of the tattoos with original concept art, a section that allows viewing of elements from the movie's website, theatrical trailers for this film and the aforementioned Following, a television spot, and some brief cast and director biographies. Finally -- and curiously not mentioned on the box -- the full original story from Jonathan Nolan that inspired the movie is included. This is unquestionably a film that begs for an audio commentary, or at least an in-depth documentary. Sadly, they are not included, though with the way things work, expect a special edition sometime down the line.