Continuity mistake: When Bugs is demonstrating his ‘sawing in half' act to the audience, the box is behind him. But when we see Bugs in the next shot, the box has gone.
Continuity mistake: When Bugs pulls the two sawn boxes apart to demonstrate to the audience that Daffy has been cut in half, there is a saw on the floor. But when Daffy jumps out of the box in the next shot, the saw has disappeared.
Continuity mistake: When Bugs is performing his juggling act, he is juggling with four balls. But when the balls fall into his hat, there are now five.
Stage Manager: But Daffy, we bill according to drawing power.
Daffy Duck: Oh, yeah? That rabbit couldn't draw flies if he was covered with syrup. Okay, this performance will prove I'm a star.