Kevin Smith has added comedic actor Craig Robinson and former porn actress Traci Lords to the cast of his upcoming comedy Zack and Miri Make a Porno. Seth Rogen and Elizabeth Banks will star as the title characters.

Other cast additions include Smith regulars Jason Mewes and Jeff Anderson along with Ricky Mabe, and Katie Morgan. The film revolves around Zack and Miri, two lifelong friends who are deep in debt and enlist the help of their friends to make a porno movie for some quick cash. But as everybody starts "doing" everybody, Zack and Miri realize that they may have more feelings for each other than they previously thought.

The film started principal photography today, in Pittsburgh, Pennsylvania.