The Swedish DVD release of Låt Den Rätte Komma In included a commentary audio track (in Swedish) with Tomas Alfredson and John Ajvide Lindqvist commenting on various things throughout the film. Sebastian Fabian was kind enough to create an English translation of the commentary track and make it avaialable as an srt file (an srt file is a subtitle file that is compatible with many CD playing programs, such as vlc). The srt file may be found here.

Below is a transcript created from Sebastian's srt file. Eventually I plan to annotate it to indicate the scenes which the comments are referring to.