Watts’ mission at STX, an ambitious Hollywood studio founded in 2014, is to build out its various divisions: film, TV, digital, and music. Launching a new entertainment conglomerate is no small feat, but Watts has the ­pedigree—she cut her teeth working on productions with the likes of Beyoncé, Elton John, and Madonna (and her late mother, Tessa Watts, was a lauded record executive and music-video producer). STX is well capitalized, giving Watts $7 billion over the next five years for developing and distributing films alone. ­Admires: Richard Branson.