Question: Erin Dilly portrays Truly Scrumptious in the 2005 musical based on a film by what author?

Context articles: Truly Scrumptious
Vulgaria
Truly Scrumptious (song)
Doll on a Music Box
Charlie and the Chocolate Factory (film)
Erin Dilly
Lovely Lonely Man
Chitty Chitty Bang Bang (musical)
Trapped in the Closet Chapters 1–12
Sally Ann Howes

Truly Scrumptious is a fictional character in the "Chitty Chitty Bang Bang" film and stage production based on the children's novel of the same name by author Ian Fleming.
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.
Truly Scrumptious is a song composed for the 1968 motion picture Chitty Chitty Bang Bang, and later performed in its 2002/2005 "stage adaptation".
 The song was written by Robert B. Sherman & Richard M. Sherman.
 It is about the lead female character, Truly.
"Doll on a Music Box" is a song originally from the 1968 musical film, "Chitty Chitty Bang Bang".
 It was subsequently performed in the 2002/2005 stage musical "Chitty Chitty Bang Bang" as well.
 It is both a musical and lyrical counterpoint to the more free flowing, legato song, "Truly Scrumptious".
 In the song, Truly is disguised as a wind up music box doll, metaphorically and actually on a pedestal.
 In the song, Truly sings about herself and her rigid nature, all behind the mask of the "doll" she is portraying.
 In the motion picture the part of Truly was played by actress Sally Ann Howes.
 In the stage musical version, the part was re-created by 19-year-old London actress, Emma Williams.
 In 2005, the Broadway "Truly" was portrayed by actress Erin Dilly, who was nominated for a Tony Award that year for the role.
Charlie and the Chocolate Factory is a 2005 musical fantasy film directed by Tim Burton and written by John August, based on the 1964 British novel of the same name by Roald Dahl.
 The film stars Johnny Depp as Willy Wonka and Freddie Highmore as Charlie Bucket.
 The storyline follows Charlie, who wins a contest and is along with four other contest winners, subsequently led by Wonka on a tour of his chocolate factory, the most magnificent in the world.
Erin Dilly (born May 12, 1972) is an American actress.
 She is most noted for her portrayal of Truly Scrumptious in the 2005 musical "Chitty Chitty Bang Bang", for which she was nominated for the Tony Award for Best Performance by a Leading Actress in a Musical and the Outer Critics Circle Award.
"Lovely Lonely Man" is a song from the 1968 musical film "Chitty Chitty Bang Bang".
 It was written by Richard & Robert Sherman and sung by Sally Ann Howes as Truly Scrumptious.
 In the song, she pines for eccentric inventor Caractacus Potts (played by Dick Van Dyke).
Chitty Chitty Bang Bang is a stage musical based on the 1968 film produced by Albert R. Broccoli.
 The music and lyrics were written by Richard and Robert Sherman with book by Jeremy Sams.
Trapped in the Closet is a 2005 musical comedy-drama film directed by R. Kelly and Jim Swaffield and written by Kelly based on the song of the same name.
 Released in April 4, 2005, the film follows protagonist Sylvester, a man who in order not to get caught cheating decides to hide in his affair's closet.
Sally Ann Howes (born 20 July 1930) is an English actress and singer, who currently holds dual British-American citizenship.
 Her career on stage, screen and television has spanned over six decades.
 She is best known for the role of Truly Scrumptious in the 1968 musical film "Chitty Chitty Bang Bang".
 She was nominated for the Tony Award for Best Lead Actress in a Musical in 1963 for her performance in "Brigadoon".