Complex sentence: An untitled project about an FBI agent Mark Felt was announced in January 2006, which was being written by Peter Landesman and to be directed by Jay Roach for Universal Pictures and Playtone.
Split into simpler sentences: An untitled project about an FBI agent, Mark Felt, was announced in January 2006. The film was being written by Peter Landesman and being directed by Jay Roach for Universal Pictures and Playtone.