Revealing mistake: When the businessman rushes back into his bed after closing the window that Daffy opened, he is wearing his normal trousers.
A Pest in the House (1947)
1 revealing mistake
Directed by: Chuck Jones
Starring: Mel Blanc, Arthur Q. Bryan
Continuity mistake: When Daffy disturbs the man by hitting the door on his room with a hammer, the man leaves and you can see that Daffy puts one of the fingers of his right hand on his beak. When we see the man going down the lift in the next shot, Daffy no longer has his finger on his beak.