Originally titled Predisposed when it was snapped up by IFC Films after its Sundance premiere, Why Stop Now is about a piano prodigy (Jessie Eisenberg) and his mother (Melissa Leo), who struggles with drug addiction. When she plans to enter rehab the day of her son’s audition for a prestigious music program, a glitch in the system forces them to enlist the help of her drug dealer (Tracy Morgan). Philip Dorling and Ron Nyswaner directed the comedy, which is getting a pre-theatrical run via on-demand outlets like SundanceNOW and iTunes starting today before its theatrical release August 17. New trailer: