David Strathairn has signed on to star in a pair of films, the fantasy The Spiderwick Chronicles for Nickelodeon Movies and Paramount Pictures and The Bourne Ultimatum for Universal Pictures.

Mark Waters is directing The Spiderwick Chronicles; Variety says the story centers on three children who move to their great uncle's ancient mansion only to discover a magical book which opens up a new world.

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Paul Greengrass is returning as helmer on the third film in the Bourne franchise starring Matt Damon; on the run again, Strathairn will play the leader of a secret operation which is hunting Damon's character.