Funny horror movie

I have just seen the last Grindhouse movie : Planet Terror by Robert Rodriguez. This is an horror movie with zombie attacks, so the story is not very original and it doesn't mean to be.
I want to precise what Grindhouse means : this is how Americans call a theater in a dirty neighborhood and right now it became a new genre with massive stunt effects, explosions, sexy babes and cult sentences. Finally, I think a picture can easily sum up the story :

Rose McGowan with a rifle instead of the leg.