Parks and Recreation star Aubrey Plaza has signed on to join the growing cast of Lionsgate's road trip comedy Dirty Grandpa, alongside Zac Efron and Robert De Niro. The plot follows an uptight young man named Jason (Zac Efron), who gets tricked into taking a road trip with his recently-widowed grandfather (Robert De Niro) right before Jason's wedding. Jason eventually discovers that his foul-mouthed grandfather is really on a mission to get laid during spring break. Aubrey Plaza is playing Lenore, a "savvy, beguiling party girl looking for fun on spring break."

Zoey Deutch and Dermot Mulroney also star in unspecified roles, although it isn't known how many characters are left to fill at this point. Dan Mazer, who made his directorial debut with I Give It a Year and co-wrote The Dictator, Bruno and Borat, is directing from a script by newcomer John Phillips. Bill Block, Jason Barrett, Barry Josephson and Michael Simkin are producing, although it isn't known when shooting will get under way.

Aubrey Plaza wraps up her run on NBC's beloved sitcom Parks and Recreation, with the final season debuting January 13 with a one-hour premiere. She also recently lent her voice to the holiday movie Grumpy Cat's Worst Christmas Ever. On the big screen, she recently starred in the zombie comedy Life After Beth.