At the steel mill, Alan is knocked on his back outside the plant, but when the police come he is inside.
Michael imprints the keys in a fake cheese pizza, but when they reassemble the pieces it has toppings.
When Bolo is knocked through the glass table, David's facial hair get's much longer in the space of a few seconds.
In the fight scene at the horse ranch, David Moore (Ed Neil) grows a week's worth of beard at the end of the fight. During the fight he is clean-shaven. However, when the fight is over, he has a full beard (looks like a week's worth of growth).
When Charlie and Tony are training, there is a part in which they're sparring while being blindfolded. When Charlie is goofing around he gets knocked down. He falls on a crash mat.
When Charlie back-flips off the fence, a crash-mat is clearly visible.