Suggestions by @adammiller

James Corden

as Augustus Gloop in The Candy Man

Score: 0

Emily Blunt

as Veruca Salt in The Candy Man

Score: +1

Macaulay Culkin

as Charlie Bucket in The Candy Man

Score: -1

Elijah Wood

as Mike Teavee in The Candy Man

Score: -1

Kevin Hart

as Tenth Doctor in Doctor Who (American)

Score: -4

Jeff Goldblum

as Sixth Doctor in Doctor Who (American)

Score: +3

Jonathan Frakes

as Fifth Doctor in Doctor Who (American)

Score: +3

Kurt Russell

as Fifth Doctor in Doctor Who (American)

Score: +1

Dick Van Dyke

as Second Doctor in Doctor Who (American)

Score: +1

Joseph Gordon-Levitt

as Eleventh Doctor in Doctor Who (American)

Score: +4

Gene Wilder

as Fourth Doctor in Doctor Who (American)

Score: +5

Ed Wynn

as First Doctor in Doctor Who (American)

Score: -2

Zac Efron

as Woverine in New X-Men Movie

Score: -1

Jon Hamm

as Bruce Wayne in Keeping up with the Wayne’s

Score: +1

Morena Baccarin

as Selina Kyle in Keeping up with the Wayne’s

Score: +1

Jane Levy

as Barbara Gordon in Keeping up with the Wayne’s

Score: +1

Adam Driver

as Walt Disney in Biopics

Score: 0