This movie was initially rated R by the MPAA and released theatrically in that form in the US. Shortly after this initial theatrical release, the US distributor, American International Pictures, made some minor cuts to the picture and re-submitted it to the CARA. This new cut of the picture received a PG-rating and, subsequently, was also released theatrically by A.I.P. No additional edits were made specifically for the U.S. video release. The R-rated version has a slightly longer shot in the shower in the beginning of the film, and a slightly longer shot of the worms burying into Roger's face.