Mandy Moore in American DreamzAMERICAN DREAMZ

American Dreamz is like a middling Saturday Night Live skit that never ends. In writer/director Paul Weitz's conception, the president is a slow-witted dolt being puppeteered by his staff, the participants on an American Idol-type mega-hit are a combination of talentless sweeties and fame-hungry monsters, and the American public happily buys every piece of pop-fueled mediocrity placed before it, especially when it's swathed in the sentimental, jingoistic guise of "patriotism." Wherever did Weisz come up with such fresh objects of ridicule?

Anna Faris and Drew Mikusa in Scary Movie 3SCARY MOVIE 3

With Scary Movie 3, the assignment of directing has been passed from Keenen Ivory Wayans to Airplane!'s David Zucker, which is a big step forward right there. (Zucker isn't much of a director, either, but at least he has ideas on how to shape a scene, and is actually pretty adept at making his film parodies look like the films they're parodying.) Plus, any time Zucker and company are satirizing the outrageous pomposity of M. Night Shymalan, whose Signs receives - and deserves - particularly harsh treatment here, Scary Movie 3 is everything you want a movie spoof to be: smart, funny, and more than a little mean. (And heartening - until now, I thought I was the only one who detested Shymalan's "Hitchcockian" appearance as the vet who accidentally kills Mel Gibson's wife in Signs.) The wide-eyed, appealing Anna Faris returns as the lead, ably satirizing Naomi Watts' reporter from The Ring, and comic actors such as Charlie Sheen, Jeremy Piven, Queen Latifah, Camryn Manheim, and legendary spoofster Leslie Nielsen all score some laughs. So why is Scary Movie 3 still so disappointing?