Continuity mistake: When Sylvester and the bulldog try to blow up the chain with some TNT, you can see the explosive has the wording "TNT" on it. But when the two take the explosive and put it into a hole, the "TNT" has gone. The wording reappears when the explosive falls out of the pipe.
Continuity mistake: When Sylvester sees a mouse, he chases the rodent and pulls the bulldog along with him. The bulldog grabs a small tree out of the ground and holds it in his hand, but when they go past the "Stop" sign, the tree has gone.
Continuity mistake: When Sylvester and the dog realise their legs have been connected by a pipe in the junkyard, the position of their feet changes between shots.
