In the movie Failure to Launch (which I don’t remember really liking all that much), the main character Tripp and his friends Ace and Demo each live with their parents. It’s the point of the movie—they’ve “failed to launch” into their own independent lives—and Tripp’s parents hire someone to seduce Tripp out of the house and into adulthood.
The part I did like about the movie was near the end, one of the emotional climaxes, when Ace admits he owns the house where he grew up (bought it from his mom) and has the basement tricked out in ultra-tech super-modern style. And when Ace sums up Demo—the guy who’s always rock-climbing and traveling—like this:
(Oh yeah, I forgot to mention Demo is played by Bradley Cooper. Which was arguably the best part of the movie.)