'Croods' parody cowriter/codirectors Kirk DeMicco and Chris Sanders, stars Nicolas Cage and Emma Stone and DreamWorks chief Jeffrey Katzenberg all appear in "Sloth."

' Croods' Parody Featurette Reveals Sloth Script Doctor Saved the Film (Exclusive Video) In a tongue-in-cheek "making of featurette," whichThe Hollywood Reporter is pleased to exclusively premiere, cowriter/codirectors Kirk DeMicco andChris Sanders say that after a disastrous test screening, DreamWorks studio chief Jeffrey Katzenberg chewed them out and ordered them to fix the film.