Justin Long, Christina Ricci, Hayden Panettierre, Danny Glover, Larry Miller and Dennis Hopper will lend their voices to the CG animated family feature "Alpha and Omega" for Lionsgate and Crest Animation Productions.

According to the trades, "Alpha and Omega" follows two bickering wolves -- one a disciplined, Alpha-bred wolf (Panettiere) and the other a fun-loving, comical Omega wolf (Long) -- who are captured and taken thousands of miles from their home.

Determined to rejoin their pack, the two mismatched wolves begin a dangerous trek across unfamiliar terrain, battling the odds, the elements, the bears and one another -- and finding love along the way.

Anthony Bell ("The Boondocks") and Ben Gluck ("Brother Bear 2") will direct from a script by Chris Denk, which is based on an original story by Steve Moore. Production is under way in Los Angeles with a 2010 release planned.