Illumination Entertainment, who kicked off the Minion craze several years ago, is preparing the third installment in the film series, which has Gru facing off against Balthazar Bratt, a former child star in the '80s. Gru also encounters some sibling rivalry when he meets his long-lost twin, Dru. The animated feature, scheduled for release June 30, 2017, pays homage to the 1980s through song, dance, and fashion.