Worst Performances: My Baby's Daddy (2004), Southland Tales (2006), Crank: High Voltage (2009)

If there's something positive to be said about Bai Ling's acting, it's this: She's never boring. A veteran, respected actress in her native China, Ling apparently saves her craziness for American-made products. From her over-the-top performance as a hellish girlfriend in My Baby's Daddy to her highly charged work as a wild hooker in Crank: High Voltage, the troubled Ling (she appeared on VH1's Celebrity Rehab with Dr. Drew for alcohol addiction) makes up for uneven skills by holding absolutely nothing back. The enthusiasm is appreciated, just not lauded.