Liplock alert! We spotted Ryan Gosling kissing Rooney Mara on the streets of Austin, Texas, while filming their untitled new film from director Terrence Malick. And we love how Gosling looked as soft as Notebook Noah while planting a sweet forehead smooch on his co-star. Care to see more of our favorite on-screen pecks? Click through for the sweetest, sexiest movie kisses of all time.