TV's Frink said:
I think there's at least a small difference between seeing Pulp Fiction all the way through and...say...Meet the Spartans.
I wouldn't argue. Just that a movie being non-linear and having some kind of twist/big payoff at the end doesn't mean the movie can slack on being entertaining during the movie.
If a movie isn't compelling you to finish it, then I think it's safe to say you thought it was a bad movie.