Trivia: In the basement scene there is a red sled called Rose Bud, referencing a sled of the same name in Citizen Kane. (00:02:50)
Trivia: Gromit was originally supposed to be a cat, but it was decided that a dog was easier to sculpt from plasticine.
Chosen answer: Bognor Regis and Blackpool are seaside towns, so presumably, those are places Wallace and Gromit have been on holiday in the past. Beaconsfield is an inside joke: It's where the National Film and Television School is located and a number of scenes were filmed there.