Speaking of J.J. Abrams, the auteur has two big holes to fill in Mission: Impossible 3. Just two months before filming is set to begin on the long-awaited sequel, leading ladies Scarlett Johansson and Carrie-Anne Moss have dropped out due to scheduling problems. Sounds like a good time for J.J. Abrams to introduce Tom Cruise's former partner-in-crime-fighting, Felicity Porter.