My favorite is the The King and I. The dance scene is perfection from beginning to end. That dress. Yul Brenner. The tension. You know he's dying to have a reason to lay his hands on her and the dance lesson is it. When he walks towards her, after spinning her off into that column, puts out his giant hand and slides it ever-so-slowly around her tiny waist, it is the most sensuous movie scene ever performed without so much as a kiss. And then, that "Come! Let's do it again." Divine. Sigh.