NBC has picked up a new reality series from movie producer Joel Silver that will attempt to find the next Vin Diesel and Jennifer Garner. According to Variety, the 10-episode series — titled The Next Action Star — will follow producers as they hold a casting search to find potential male and female stars with "that indefinable 'it' factor." The winners will star in the Silver-produced NBC TV movie Hit Me. Paging American Idol spitfire Tamika...