class=”alignleft size-thumbnail wp-image-35298″ title=”Tom Tykwer” src=”×150.jpg” alt=”” width=”220″ height=”150″ />A few months ago it was revealed that Tom Tykwer was in search of an all-star cast to feature in his forthcoming adaptation of Cloud Atlas.

An official announcement was made earlier today, via ScreenRant, that Natalie Portman, Tom Hanks, Halle Berry and James McAvoy have all signed on the dotted line. Ian McKellan’s rumoured involvement is still unconfirmed.

Cloud Atlas was written by David Mitchell in 2004 and has since won many literary awards, so news of a film adaptation comes as no real surprise.

Cloud Atlas consists of six nested stories that take us from the remote South Pacific in the nineteenth century to a distant, post-apocalyptic future. Each tale is revealed to be a story that is read (or watched) by the main character in the next.

It’s an ambitious project to say the least, but with Tykwer’s distinctive film-making style and the casts versatility, it’s a film that has the potential to be a massive success.

The Wachowski Brothers have been tapped to produce, with production expected to start in Spring 2011, if all comes together.