I won't go into details about the plot here, that's been covered by other reviewers extensively.
A copy of this film sits beside another great comedy / horror - Army Of Darkness. While Jack Brooks: Monster Slayer doesn't take as many risks as that film did, it certainly delivers a good time to people who love the horror comedy genre. With a fairly inexperienced cast - except for Robert Englund, a love of foam rubber, exciting directing style, and a story that works better than your average horror movie, this film surprised me.
The performances are energetic, fun, and when they cross over into camp, they don't try to be too serious. The special effects are very well done considering the materials and the actors know how to sell the situations they find themselves in. When things are too rubbery to believe, they push things a little further so they become intentionally comical.
These film makers seem to realize something that Hollywood has forgotten. There's room for serious camp in the film industry, and when it's done well, it is just as entertaining as anything else to the right crowd. Aside from that, there are plenty of young actors in this film that I think we'll see a great deal of in the future.
Bottom line? If you're a fan of the Evil Dead series, liked Return Of The Living Dead, or enjoy other classic camp in general, this DVD belongs on your shelf.