Justin Long and Fred Willard have joined Michael Cera and newcomer Portia Doubleday on the cast of Dimension Film's tale Youth In Revolt.

Zach Galifinakis, Ari Graynor, Erik Knudsen, Adhir Kalyan, Jonny Wright, Tricia Mara and Mary Kay Place have also come aboard.

The Permut Presentations and Shangri-La Entertainment project is based on CD Payne's cult book about a teenage tearaway who meets the girl of his dreams on family vacation. Cera adapted the screenplay with director Miguel Arteta and Gustin Nash.

Steve Buscemi, Ray Liotta, Jean Smart, and M Emmet Walsh round out the key cast so far. David Permut is producing.

Dimension's slate includes the comedy Soul Mean starring Samuel L Jackson and Bernie Mac, horror title Clive Barker Presents: Hellraiser, and several family pictures with Ice Cube's production company Cube Vision.