Catherine is in the lab comparing tire tread marks on the jacket to actual tire treads on rolled out paper with an 8-1/2" x 11" glossy photo of the jacket. This picture is shown twice and the first time shows just the photo with the lab info around it while the second time we see the photo there is red marker highlighting the tread defect.
The victim was called Veronica Juarez, but her degree certificate was made out to 'Veroncia Juarez'.
The $100 dollar bills that Warwick removes from Vincent DeCarlo's wallet are clearly marked "Motion Picture Use Only".
The high speed photography of the 9mm firing in the car shows that the spent shell being ejected is a blank. The casing is much longer than a regular 9mm casing, and the indentations can clearly be seen from where the brass is folded to keep the powder in.