Other mistake: In the scene where Frank is watching the Bond film: turn on subtitles. You will notice that when Bond says "Tell me Jill, why does he do it?", the subtitles read "Tell me Joan, why does he do it?". (00:57:05)
Other mistake: One of the end credits is "saxaphone solo." It should be "saxophone."
Answer: He was taking the labels off the bottles to make fake checks, using the logos as this is the one thing that he could not create on the checks. The MICR printer was only used to print the routing and account numbers and the emboss the checks.