EXCLUSIVE: Three weeks into filming on Cinemax’s 12-episode series Transporter, the action drama’s executive producers/showrunners Joseph Mallozzi and Paul Mullie have left over creative differences. Veteran TV director-producer Steven Shill, who was recently brought in to work alongside Mallozzi and Mullie, is now expected to take over showrunner duties, at least for the time being. The series is in production in Toronto, currently working on Episodes 4-5; shooting is scheduled to continue through November for a 2012 premiere. Based on Luc Besson’s Transporter film franchise, the series stars Chris Vance as professional transporter Frank Martin, who can always be counted on to get the job done — discreetly. Andrea Osvart co-stars on the show, a France/Canada international treaty co-production that is being executive produced by Besson, Fred Fuchs and Robert Cooper. It is Cinemax’s second original primetime series to go into production, following Strike Back, which premiered this summer to solid numbers.