This is a very funny film. The book is a lot funnier, but... Try to find a copy of either, it's difficult. For anyone, they should find it rather amusing. For Christians of the evangelical camp, they should find it both humorous and thought-provokingly challenging.
Basically, a guy becomes "saved" at a revival meeting during a difficult time in his life. He becomes better and better at evangelizing for his faith, to the point where his ego begins to consume and embolden him. He gradually moves to doing massive, grandiose attempts to evangelize others-- especially his irritating "unsaved" next-door neighbor-- including hiring a blimp to flash signs of salvation over the city, and especially over the house of his "unsaved" neighbor. But he can't even go over and meet the man, face to face.
The movie's conclusion (as with the book) finds him discovering that offering salvation and acts of faith and charity are sometimes closer to home, and more personal.
