It's mostly very funny, on occasion very irreverent, and every now and then a bit dull. Mileage may vary depending on how this combination hits you. The tag scenes are a blast, which is why the movie works as well as it does, and the filler is kind of entertaining, too. Knowing it is based on a true story is fun, though the real footage in the credits is somewhat underwhelming after just watching the high-gloss movie version.