Suggestions by @thomasb

Matt Smith

as Texas Guy in The Best Movie

Spice Girls

as Jillian in The Best Movie

Norville "Shaggy" Rogers

as Mr. Universe in The Best Movie

Saoirse Ronan

as Thomasin McKenzie in The Best Movie

Thomasin McKenzie

as Saoirse Ronan in The Best Movie

Eric Roberts

as Killian Kelly Carlton in The Best Movie

Joseph Gordon-Levitt

as R0bertson 101 in The Best Movie

Jenna Ortega

as Emily in The Best Movie

John Travolta

as Carl in The Best Movie

Octavia Spencer

as God in The Best Movie

Akira Kurosawa

as Director in The Best Movie

Kenan Thompson

as Kenan Thompson in The Best Movie