Washington, Sept 22 (ANI): 'Perfect Stranger' star Giovanni Ribisi has signed up to star alongside Sigourney Weaver in 'Avatar'.

According to the Hollywood Reporter, the actor will be playing a passive-aggressive character named Selfridge in the movie, to be directed by Jim Cameron, reports Moviehole.

Also starring in the 190 million dollar Fox movie are Sam Worthington, Zoe Saldana, and Michelle Rodriguez.

The science-fiction epic - about band of humans pitted against a distant planet's indigenous inhabitants - features a blend of live-action photography and new virtual photorealistic production techniques invented by Cameron's team.

The film features six computer-generated actors known as "synthespians".

Currenty in production in Los Angeles, the film starts production in New Zealand at Weta Digital next month.

It is scheduled to hit theatres on May 22, 2009. (ANI)