Secret codes within the film

Rating: 9/10 (19 May 2007)

Did anyone else notice the flash frame codes within the film? I think that Fincher is having one of his laughs here (think the numerous visual tricks and one-frame images in FIGHT CLUB... One of the images (they both look a bit like brail letters) comes the first time that the Ruffalo character is woken up in bed and he pushes a lamp towards the camera. I am sure that they are not the traditional "cigarette burns" that denote the end of a reel but are something a bit more intriguing.... Anyone else have another idea or more information? I would not se surprised if there were a few more in the film, but a noisy audience made it difficult for me to concentrate totally...