Ryder to play Spock's mother in Star Trek

Winona Ryder has signed up to star in the new Star Trek movie - as the Vulcan mother of Mr Spock.

The 'Girl, Interrupted' star will join Chris Pine as Captain Kirk, British funnyman Simon Pegg as Scotty and Heroes actor Zachary Quinto as Spock for the eleventh big screen outing of the cult TV show.