There's a breathtakingly beautiful tango in Indochine between Catherine Deneuve and her adopted Vietnamese daughter when Catherine Deneuve starts dancing tango with her to keep the girl away from CD's young French officer lover who is attracted to the girl. It's really exquisite.
And for sheer joyous camp, don't forget in the first Addams Family movie (the one with Raoul Julia and Angelica Houston) where Gomez and Morticia dance this incredibly over the top tango, complete with the rose in the teeth, and flames of fire igniting on the dance floor. I need to watch that again. I haven't seen that movie since before I started dancing tango.
In Chicago, of course, there is the Cell Block Tango, but it is so modern and stylized that only an experienced and serious tango student would even recognize it as tango. I mean, sure, I recognized all the movements, but it would be hard to call it tango, mostly because it was done as a prodution number, and not as a partnership dance. But, it was still very interesting. Anything Bob Fosse did is worth studying, even though this was another choreographer's interpretation of Bob Fosse's original choreography, and it was re-done for film rather than for stage. Still, it was fascinating.
I don't remember a tango in Some Like It Hot!!! Gives me an excuse to watch it again!!
Renee