Leslie Mann has been cast in the hotly anticipated Vacation sequel as Ed Helms‘ big sister Audrey. In the classic National Lampoon’s movies, Audrey was played by Dana Barron, Dana Hill, Marisol Nichols and Juliette Lewis. Mann most recently started in The Other Woman with Cameron Diaz and Kate Upton, This is 40 with Paul Rudd, and Paranorman with Anna Kendrick, Casey Affleck and many more. Alongside Helms, Christina Applegate will play Rusty’s wife, Debbie, and Chris Hemsworth has been announced as Audrey’s husband, Stone Crandall.

While there aren’t a lot of details out there on the full plot of the upcoming film, Chevy Chase and Beverly D’Angelo will reprise their roles as Clark and Ellen Griswold in cameo appearances. The feuding siblings storyline will be taken over by Rusty’s two young sons who are being played by Skyler Gisondo and Steele Stebbins. In addition to these new cast members, Charlie Day has been tapped for a role as the rafting guide the family meets, and Victorious’ Elizabeth Gillies has been cast in a small role.

Here’s hoping that Helms’ and Mann’s comedic chops will bring the sibling rivalry back to life between Audrey and Rusty though, and they should have great backup in their on-screen loves. Hemsworth’s comedy skills may be less well-tested, but Applegate is sure to compliment her on-screen husband. It’s just not a Vacation without some sarcasm and love-hate between the kids, no matter what their ages.

The movie has been written and will be directed by John Francis Daley and Jonathan Goldstein. Thought we’ve seen them team up on screenplays before – Horrible Bosses and The Incredible Burt Wonderstone – this will be their first time directing a feature. You can learn more about their process on the Nerdist Writer’s Panel episode they were on earlier this year.

You can also hear more about Vacation in today’s Nerdist Podcast. Ed Helms is back for another visit, and Vacation, Rusty and his theories on a Griswold dark secret are all on the table for discussion.

[HT: The Wrap]