Suggestions by @kipwalker

Amy Adams

as Wilma Flintstone in The Flintstones

Melissa McCarthy

as Betty Rubble in The Flintstones

Terence Stamp

as President Cashew in Captain Future

Jesse Eisenberg

as Bob Dylan in The Beatles Biopic

Vincent D'Onofrio

as Tony in Leon: The Professional

Joe Wright

as Director in Shatterhand

Lorde

as Intro Song Artist in Shatterhand

Tim Robbins

as Uncle Ben in Spider-Man

Frances McDormand

as Aunt May in Spider-Man

Colin Ford

as Harry Osborn in Spider-Man

Kevin Hart

as Chris Rock in Farley

Martin Starr

as David Spade in Farley

Spike Jonze

as Director in Henson

Jason Segel

as Jim Henson in Henson

Caitlin Carmichael

as Lex Murphy in Jurassic Park

Jamie Foxx

as Ray Arnold in Jurassic Park

Jamie Foxx

as Robert Muldoon in Jurassic Park

Patrick Stewart

as John Hammond in Jurassic Park

Toby Kebbell

as Freddie mercury in David Bowie Biopic

Dane DeHaan

as Kurt Cobain in Nevermind: The Nirvana Story