I know I've commented on this scene numerous times, analyised it to the nth degree, frame by frame in some instances. But I saw the movie [again] Saturday, and this scene gave me another reason to like it. When Ennis comes down the stairs and hugs Jack, and then they break apart, I'm still absolutely gobsmacked by Jack's eyes going straight to Ennis' mouth and staying there. Jack doesn't see Ennis look around to see if the coast is clear per se, but when Ennis starts walking him backwards, his hands holding Jack by the collar of his vest.... The look on Jack's face is priceless. It's open shock and amazement and (fear?). Right to the point he slams back against the wall and Ennis' mouth comes down on his.
Just perfection.
Lovesit!