In the scene where Jane calls Stacy to tell her she is 32 (3-4min mark), when Stacy turns around you can see the camera man in the mirror.
In the opening scene when Jane wakes up and opens her closet doors (camera angle from the ceiling down), you can clearly see Jane and Stacy's marks glued to the rug. Jane is pink tape Stacy is green.
When questioning the DA at trial, Jane submits a police report and asks that it be marked "Exhibit A", which would make it her first exhibit. However, she has just shown a videotape, which would have to have been entered into evidence and marked as an exhibit, so the police report cannot be Exhibit A.