Wednesday night, Brie Larson posted a pic of her and her on-screen son Jacob Tremblay making their final toast to Room in honor of its premiere in Japan. The movie Room is so frickin' sad, that it is a relief to see them laughing and smiling, and so moving to know that the strong mother-son bond the movie is about extends off screen. Larson posted the pic along with an adorable glimpse into their friendship and a tribute to the journey that changed both of their lives.