“Bridesmaids” creator Annie Mumolo has nabbed the title role in Fox’s comedy pilot “Amy’s Brother,” Variety has learned. Mumolo co-wrote the 2011 hit flick “Bridesmaids,” which starred Melissa McCarthy, who is executive producer on “Amy’s Brother.” “Amy’s Brother” is about an unconventional family that is formed when a successful type-A man and his estranged sister, Amy (played...