if you have read the book do not set your hope high and if you have not go read it and and never watch the film . it be strange to learn that toby young be actually involve a lot in the writing of the script ( a he claim himself in the post script of the book ) . because the film be very different from the book . what the film seem to be aim at take a rather think provoking and entertain piece that combine philosophical idea with plain funny sarcasm and simplify it so that everyone would understand it it achieve with perfection . the film be full of bad and cheap joke suitable for a sitcom and and have lose any meaningful message that it could have have . you be good off not see it .