Jason Momoa turned the London premiere event for Supergirl into a family affair this week, bringing his two children with ex-wife Lisa Bonet for a rare red carpet appearance. The 46-year-old actor posed alongside daughter Lola Iolani Momoa, 18, and son Nakoa-Wolf Momoa, 17, as fans got another glimpse of the close-knit family dynamic that has remained intact following Momoa and Bonet’s split. According to People , the June 18 event marked one of the few times the siblings have stepped out together with their father at a major entertainment function. Momoa, dressed in a gray three-piece suit, stood between his children while promoting Supergirl , in which he portrays the intergalactic bounty hunter Lobo. Lola arrived in a strapless black dress accessorized with wired headphones and a red handbag, while Nakoa-Wolf kept things monochromatic with black slacks, a matching vest, and layered jewelry. The film is scheduled to hit theaters on June 26.…