Without any porridge left the cupboard, the three bears realise they won't be able to attract Goldilocks to their home. With only the old carrots available to eat, they make soup and lure Bugs Bunny into their house. However Bugs proves to be much harder to catch than Goldilocks and the 3 Bears are not getting their fairytale ending.
Bugs Bunny cartoons will always do roughly the same thing every time Bugs will evade and trick and mock who/what ever is trying to catch him. In this case he is drawn into the fairytale world of the 3 Bears. Cue his usual trademark humour which I found as funny as always here.
Bugs' support characters usually make or break a film and here his foils are mostly pretty funny. The papa bear is a hoot with his impatience and quick temper, the baby bear is slow and dumb and combines well with the father. Only the mother fails to really establish herself, even though she is used in the punchline of the film she is not as strong as the others.
Overall though this is a funny film and the support characters do what they are supposed to do and carry a certain amount of the weight of the comedy and give a foil for Bugs to play off well.