I remember Will Arnett was attached to this at one point.
Jennifer Aniston is circling "We’re The Millers", the New Line comedy about a pot dealer who pulls together a fake wife and two kids to pose as an RV road-tripping family so that he can smuggle 1000 pounds of pot across the country. Dodgeball‘s Rawson Thurber is directing. Aniston is in talks to play the fake wife, who’s actually a hooker. Her "Horrible Bosses" costar Jason Sudeikis is eyeing the role of the family patriarch (he’s the pot smuggler). The kids are juvenile delinquents. The raunchy comedy, described as a “warped National Lampoon's Vacation,” has a script by "Wedding Crashers" scribes Bob Fisher & Steve Faber, and the film’s produced by David Heyman, Happy Walters, Vince Newman and Tucker Tooley, with Benderspink executive producing. Aniston is coming off "Wanderlust", and she’s repped by CAA and Brillstein Entertainment Partners.