Out of about 50,000 jokes in SCARY MOVIE 4, only about 10 actually made me laugh out loud (although, I can't deny having minor chuckles every now and again). It's not that I don't appreciate silly, immature humor - I just expect that humor to actually be funny. And in order to make those jokes funny, the filmmakers need to do two things: get a somewhat decent script, and execute the jokes in a relatively humorous manner. Neither of those important details are prevalent here, at least not very often. Take the opening sequence for example: Dr. Phil and Shaquille O'Neal awake in a bathroom with their legs chained, and in order to free themselves, all Shaq has to do is make a free throw. Now, that's a pretty damn funny conceptfor an opening scene... unfortunately, the horrid acting coupled with the lousy comedic timing ruins the fun. But even with competent actors and a more talented director, most of the jokes in the script are so poor that I can't imagine the scene being funny regardless. In order for the sequence to actually work, a complete overhaul of the screenplay would be needed. (That's actually assuming there was a screenplay, and not just a bunch of people improvising and making up random jokes on the day of the shoot.)
On the bright side of the spectrum, there are actually a number of quality jokes to be found throughout the film, such as when Anna Farris' character talks to the little Grudge-boy in Japanese. "Hello? Do you live here?" the subtitles read. But what she's really saying is, "Haro? Hibachi benihana teriyaki?" Now that's some funny shite... but moments like those are few and far between. Most of the movie's humor relies on dumb jokes, like when Cindy accidentally bathes an old woman in her own urine. Maybe there are some people out there who find jokes like that funny ($175 in box-office receipts just about confirms that), but I'm not one of them. If you are, then hey - here's a new movie to add to your collection.
In terms of extras, there's a lot available, but most of it is short and meaningless. Ignore the "Over 2 hours blah blah blah..." on the DVD. It's another stupid marketing ploy where they trick the consumer into thinking they get more than they do - about an hour and a half of that "2 hours" is the commentary. Assholes.
Audio Commentary (with director David Zucker, producer Bob Weiss, and writer Craig Mazin): The trio of speakers have a good time with this track, speaking a lot about what they think works and doesn't work in the film, telling plenty of on-set stories, discussing stuff that didn't make it in the movie, and enjoying each others' company as they go off on off-topic tangents. Overall, this commentary is light and sort of enjoyable, just like the movie.
Deleted & Extended Scenes (13:45 - with optional commentary): There are 15 of them, and surprisingly enough, a few of these scenes are pretty damn funny (like the sweater gag). The rest are about as bad as the movie's worst jokes.
Bloopers (7:01): You can tell the people behind this movie had fun putting it together, but this reel just isn't that funny. Most of it just deals with actors who aren't that great with their lines.
The Man Behind The Laughs: David Zucker (3:44): A lame super-short featurette that doesn't discuss anything other than Zucker's distinctive laugh.
Zany Spoof Humor - Zucker Style (2:59): Another super-short featurette going into minor detail concerning David Zucker's style of humor.
Interviewer's Worst Nightmare (4:59): Another lame semi-featurette where the actors pretend to be assholes to an interviewer. Not funny, not worth watching.
The Visual Effects of Scary Movie 4 (8:31): This featurette goes into detail about how the special effects needed to look good since they weren't part of the gag. Otherwise, they would just be distracting.
Youngbloodz (3:26): A featurette showing two excited rappers doing a quick scene for SCARY MOVIE 4. Meh.
Rappers... Actors (2:39): Basically the same as the above extra, except regarding the many other rappers making cameo appearances in the film.
Also included is the movie's Theatrical Trailer, as well as a number of Previews when you load up the DVD.