This straight-to-video parody of early 2000's slasher films seems to have been a victim of bad timing, not bad film making.
The makers of "Scary Movie" went for the gross humor, while "Shriek..." plumbs the same depths but not as revoltingly. You know the drill, so to speak- a few high schoolers are murdered one by one by a madman at their school. The moxie crew identifies the killer.
There are scenes here that really had some funny moments. The opening murder here is funnier than the one in "Scary Movie." The chase around the kitchen island, the interrupting phone call, the killer lighting the cigarette- all funny. The school where this is set, Bulimia Falls High, is also funnier. The classroom doors have signs on them, and you hear very funny sounds coming from the rooms, i.e. "Sieg Heil!" from the German Club room. The background features the killer picking off whomever is standing there while in the foreground, our heroes worry that the victims are popular and white, like them. Funny cameos are also included from Shirley Jones and Mink Stole, and the final unmasking scene is a riot.
The problem is that the Zucker Brothers-type humor is wearing thin. It had been wearing thin for decades. There are good ideas here, like how to survive a parody, and a Pop-Up Video (remember those?) chase, but the bloom is off the comedic rose.
I recommend "Shriek If You Know What I Did Last Friday the 13th," but I give it the same recommendation that I gave "Scary Movie"- with reservations.
