Corrected entry: One scene shows the star baby making an escape from parents in his pram. To get there he dons a disguise of long coat, scarf and holds a big cigar. Each of these articles is discarded, yet when we see the baby girl he switched clothes with, the baby girl has the cigar in her hand.
Corrected entry: The babies' obviously CGI-animated mouths throughout the film don't match the words they're supposedly speaking.
Corrected entry: When the guy locks Sly in the new pen he punches in two sets of code-numbers on the keyboard. Sly records only one set of the code-numbers and was able to escape. So what happened to the other set of code-numbers?