Continuity mistake: After Frank Jr. receives some checks for his 16th birthday he hugs his dad. Jr.'s head rests on his dad's right or left shoulder, depending on the angle.
Continuity mistake: In the plane, during Carl and Frank's chat on how did Frank pass the law test, the pillow in between swaps positions between angles.
Continuity mistake: When Frank Jr. takes his father to a fancy restaurant, his hair keeps swapping between brushed backwards or with a fringe on the left side.
Continuity mistake: Going to school, Frank takes a cigarette off his mom's hand and throws it over the window. On the first angle he takes his head out of the window, but on the next angle his head is inside, as if just the torso had made the movement.
Continuity mistake: When the show 'To tell the truth' starts, the host has his hands apart and raised. A frame later they are flat on the counter and his fingers crossed.
Continuity mistake: When Frank is having lunch with his father and offers him a Cadillac, in some shots Frank's right arm is over the table, but in others he has both arms hanging.
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.