I had never thought about categorizing movies in this way, now that I am it seems very clear. Some comedies revolve around the characters, their interaction and their situation in a funny, yet vaguely realistic way ("The Hangover"). Other comedies are blatantly absurd and ridiculous and are propelled forward by the jokes themselves which are often slapstick, the characters are tend to be flat and their situations simply a frame to hang the jokes upon ("Airplane!" <a href="http://www.imdb.com/title/tt0080339/" rel="nofollow">http://www.imdb.com/title/tt0080339/</a>).<p>I agree with the OP, having a mix of these types of comedies is a good thing. Too many of one or the other type wears on an audience. I haven't seen "The Hangover II" but already I have concerns that it will be funny in parts yet depressing overall ("Very Bad Things," <a href="http://www.imdb.com/title/tt0124198/" rel="nofollow">http://www.imdb.com/title/tt0124198/</a>).