Question: Erin Dilly portrays Truly Scrumptious in the 2005 musical based on a film by what author?
Sentence (from "Vulgaria"): Vulgaria is a fictional European barony visited by the Potts family and Truly Scrumptious in their flying car, in the 1968 children's film "Chitty Chitty Bang Bang" and the 2002 stage adaptation.
Relevant evidence: No