Natalie Portman will play Indiana Jones' daughter in the fourth and final movie.
The news was accidentally revealed by Karen Allen who played Jones' love interest Marion Ravenwood in the first film.
Karen Allen said:
I just heard Natalie Portman was cast an Indy's daughter. 
A witness claims the actress then immediately changed the subject, desperately trying to cover up her slip of the tongue.
Other actors linked to the project include Jake Gyllenhaal and Sean Connery, who is expected to reprise his role as Indiana Jones' father.