Jason Biggs plays a character who is a bear rug in a grizzly bear world. He just lies down and lets everyone walk all over him, and they take every opportunity to do so.
My theory is that Woody Allen has traveled from the future to alter his own history. That was why they were wearing the same outfit when they met. Woody wants to impart some post-9/11 constructive paranoia in himself so that he will get out of New York before the planes hit the fan.
"It's very important you learn to depend only on yourself," Woody says about masturbation. But he intends for Jason to apply it to his life.
There are some pretty funny quips peppered through the beginning of the movie, but they kind of die out at about the same time as my interest. I think when I first saw this movie I thought it was "not bad." And that's about all I can say for it now, unless my theory about time travel is true. I suppose it is as true as anything else.