Well, Moxie asked what the best dance scene in a movie is. Kinda vague. So here's the parameters I'm setting. I'm throwing out the dance movies. Half the time the actors in those aren't really actors, they're professional dancers with a teleprompter. Next, I'm limiting it to one style of dance, because sorting out weather a well done jazz dance beats out a well done waltz is too much work. So I'm picking Tango. I'm also limiting it to movies that saw a major release in the US. Finally, I'm basing it on my entertainment, not technical correctness.
So here are the best tangos in film history.
The most recent is the Tango shared between Brad Pitt and Angelina Jolie in the 2005 film Mr. & Mrs. Smith. What makes this dance interesting are two main factors. One is the authentic music. The Assassin's Tango by John Powell is a wonderful piece that I actually keep in my music library. The second factor that makes it great is the styling. It's not a dance, it's a battle. The animosity between the characters is palpable. Combine it with some good acting, and you've got a very interesting scene.
In 1993, Raul Julia and Anjelica Huston performed a tango with paso doble elements, and a lot of special effects, in Addams Family Values. While there's some decent footwork, the dance itself isn't the centerpiece, it's how the dance illustrates the characters, and fits within the Addams Family framework. It's macabre, yet romantic, and also endlessly hilarious.
Scent of a Woman had Al Pacino play a blind man. But apparently he had better vision on the dance floor than anyone, including co-star Gabriele Anwar, gave him credit for. It's interesting how the dance starts out haltingly, as each dancer takes measure of the other, and eventually turns into a very passionate and impressive dance as they trust each other more.
In Never Say Never Again, the somewhat misguided 1983 remake of Thunderball, Sean Connery and Kim Bassinger share a tango, portraying 007 and Domino, respectively. it's a somewhat uneventful dance, but it's Sean Connery.