Emily Blunt [1] and John Krasinski [2] continued their reign as one of Hollywood's cutest couples [3] when they attended the premiere of The Girl on the Train in NYC on Tuesday. Emily, who was on hand to promote her latest project [4], dazzled in a gorgeous green gown, while John looked dapper in a navy suit. In the film, which hits theaters on Oct. 7 and also stars Justin Theroux, Emily takes on the leading role of Rachel Watson [5], a British divorcée who gets entangled in a missing woman's disappearance. Just last month, John couldn't help but rave about his wife's performance [6] in the film, telling POPSUGAR, "It's the best she's ever done . . . She always blows me away, but in this particular role, I can say genuinely for the first time, it's the only time since, as long as I've known her, that I ever forgot that it was her on screen."