Bono was flanked by African-born models Iman and Alek Wek on Tuesday night at MoMa for an an advance screening of HBO’s “The Lazarus Effect.” The film, which is about treating HIV/AIDS in sub-Saharan Africa, was a collaboration with Red, a charity with which the U2 front man often works. Bono said his interest in social activism goes way back to his teenage years in Dublin spent listening to rock music. “Bob Dylan would whisper these incendiary things into my ear,” he recalled. “[Things like] that the world doesn’t need to stay the same.” Hayden Christensen, Gabourey Sidibe and Zach Galifianakis — all of whom costarred with Bono in a recent PSA for Red — were also on hand for the event. After credits rolled, guests headed over to the Ace Hotel’s Liberty Hall for an after party.