When Ray is holding the baby, he first hold her under the head with his right hand. The camera angle switch and now the baby lays on his arm. And when the camera goes back, Ray holds the baby under the head again.
Mickey is about to leave the Fiteclub and goes between Darryl and the boxing sack, Darryl is suddenly turning 180 degrees around. Mickey and the guy coming up the stairs are almost in the same spot when the camera changes, but Darryl is facing the other way.