Shepard, 42, wrote and directed the cop comedy CHiPs, which also stars Michael Pena, as well as his sister and brothers. "We always like to fill the places we work with people we love," Bell, 36, said of making the set a family affair.
However, when asked who'd he'd like to have a bromance with, Shepard admitted that Pena has some competition. "Brad Pitt is the ultimate dream, you know," he quipped. "I put Michael Pena tied with Brad Pitt for my bromance desires."
The red carpet also featured a few cast reunions. Shepard reunited with his onscreen wife from Parenthood, Joy Bryant, as well as Mae Whitman, who also stars in CHiPs. "I know Joy Bryant's coming because we were married, she has to -- my TV wife," he joked with ET. "Sometimes TV marriages last longer than real marriages."
Meanwhile, Bell was reuniting with her Boss co-star, Melissa McCarthy, and created some priceless photo ops.