That whole, "It's like Lord of the Rings, but with Bunnies" style of pitching originates in the Hollywood film scene. You can have so much fun with that. I guess music gets summed up that way too. "Heard that new Christian band?" /"No. What's it like?" / "Alanis Morisette, meets Metallica, meets Jesus".
The book world has movie producer values?
Warren