I don't know what tools of the trade Paul Rudd and director David Wain share to dream up the kind of inspired nutso stuff Rudd has done in smart-funny-raunchy winners like "Wet Hot American Summer" and "Role Models." But whatever it is, the two are in a groove - and backed up by some blissed-out creative co-conspirators.

Stars Paul Rudd and Jennifer Aniston find themselves at home here, playing against a stock-raising performance by Justin Theroux as the charismatic libertine who prompts their adventure.

Though Wanderlust finally laughs off the real discomforting conclusion that it's edging toward, it's gut-busting funny when mocking their hopeless options.

Alternately mortified and charmed by the unhinged lifestyle, the film goofily celebrates the idea of a societal escape before drowning its idealism in a puddle of half-formed jokes.

Wanderlust is an agreeable comedy that peters out halfway through.