It's really great seeing Simon Pegg playing it as straight as possible, because it enhances the horror part of the movie. There still is comedy bits in there (the whole idea is kind of crazy to begin with), but it gets mixed well with those really great shocking moments throughout the movie.
An important character gets introduced very late in the movie, which can be viewed as a mistake or something bad, but even that sort of works for the movie. And it works because it is mainly a one man show. Heavy lifting that Mr. Pegg is able to do. The audio commentary on the disc of course showcases his sense of humor again. Not only for his fans, but for everyone who likes quirky and weird movies.
An important character gets introduced very late in the movie, which can be viewed as a mistake or something bad, but even that sort of works for the movie. And it works because it is mainly a one man show. Heavy lifting that Mr. Pegg is able to do. The audio commentary on the disc of course showcases his sense of humor again. Not only for his fans, but for everyone who likes quirky and weird movies.