On the fourth trick shot, the position of the balls on the close-up and master shots do not match.
On the third trick shot, the animator's hand can be glimpsed positioning a ball.
When Field's rival dives out of the poolroom and lands in the rain barrel,just before it cuts away to the pool room again you can plainly seen a man wearing a white shirt rushing up to pull the actor out of the barrel.The editor didn't cut away quite quick enough.