Suggestions by @lolamatthews

Vanessa Hudgens

as Patricia Kotero in Prince Biopic

Score: 0

Christy Altomare

as Anita Dobson in The Show Must Go On

Score: +1

Emma Watson

as Anita Dobson in The Show Must Go On

Score: +2

Matthew Lewis

as Peter Freestone in The Show Must Go On

Score: +1

Gwilym Lee

as King Dominick in Barbie the Princess and the Pauper

Score: +1

Emilia Clarke

as Erika in Barbie the Princess and the Pauper

Score: +3

Emilia Clarke

as Princess Anneliese in Barbie the Princess and the Pauper

Score: +1

Lucy Griffiths

as Princess Anneliese in Barbie the Princess and the Pauper

Score: +2

Lucy Griffiths

as Erika in Barbie the Princess and the Pauper

Score: 0

Tom Hiddleston

as Preminger in Barbie the Princess and the Pauper

Score: 0

Sam Rockwell

as Actors in Most Scary Characters' Actors and Actresses

Score: +4

Natalie Dormer

as Beggar Woman in Sweeney Todd

Score: +3

Drew Barrymore

as Mrs Lovett in Sweeney Todd

Score: 0

Christopher Nolan

as Writer in Sweeney Todd

Score: +1

Danny Boyle

as Writer in Sweeney Todd

Score: +1

Alan Silvestri

as Composer in Sweeney Todd

Score: +1

Thomas Newman

as Composer in Sweeney Todd

Score: +1

Alfonso Cuarón

as Director in Sweeney Todd

Score: +1

Christopher Nolan

as Director in Sweeney Todd

Score: +1

Danny Boyle

as Director in Sweeney Todd

Score: +1