If it's about Gen X

It'll probably stay on the big screen for a week and then go right to DVD.

In an early scene in "Greenberg," Roger Greenberg (Ben Stiller) is at a pool party with all his 40ish friends and their kids. "All the men are dressed as children, and all the children are dressed as superheroes," he observes.

Of course, we all dress ourselves aspirationally. The kids want to be Batman, and their dads want to be 12 again.

"Greenberg" doesn't address this wistfulness for lost youth as baldly as say, "Hot Tub Time Machine," but writer-director Noah Baumbach is hilariously acute in his observation of Generation X in the early autumn of its years.