Joseph Gordon-Levitt sat on the edge of his balcony seat, crouched forward, hands clasped, his dark double-breasted jacket draped next to him, as he, and his Looper costars Bruce Willis and Emily Blunt, along with close to 2,600 other people, watched the sci-fi thriller at Toronto’s enormous Roy Thomson Hall for its Toronto International Film Festival premiere, kick-starting the fest Thursday night.
