Suggestions by @radranger

Joe Keery

as Kurt Cobain in Biopics

Score: 0

Joe Keery

as Kurt Cobain in Famous Singer Biopic

Score: +2

Ansel Elgort

as Shawn Mendes in Famous Singer Biopic

Score: +1

Lucas Till

as Jeffrey Dahmer in Biopics of Serial Killers and Notorious Criminals

Score: 0

Gary Oldman

as Ted Bundy in Biopics of Serial Killers and Notorious Criminals

Score: -1

Tom Holland

as John Lennon in The Beatles Biopic

Score: -7

Ansel Elgort

as Hal Jordan in Justice League Origins

Score: +1

Joe Keery

as Barry Allen in Justice League Origins

Score: +1

Andy Mientus

as Bruce Wayne in Justice League Origins

Score: 0

Tanner Buchanan

as Clark Kent in Justice League Origins

Score: +3

Lucas Till

as Jeffrey Dahmer in Jeffrey Dahmer biopic

Score: 0

Robbie Amell

as Human Torch in MCU Fan Casting

Score: +1

Carl Weathers

as Jax in Mortal Kombat - Fan Casting

Score: +1

Tom Cruise

as Johnny Cage in Mortal Kombat - Fan Casting

Score: +1

Tanner Buchanan

as Superman in DCEU Rebooted

Score: -6

Andy Mientus

as Batman in DCEU Rebooted

Score: -20