[Smale, Stephen. The story of the higher-dimensional Poincaré conjecture (what actually happened on the beaches of Rio de Janeiro). A joint AMS-MAA invited address presented in Phoenix, Arizona, January 1989. AMS-MAA Joint Lecture Series. American Mathematical Society, Providence, RI, 1989. 1 videocassette (NTSC; 1/2 inch; VHS) (60 min.); sd., col. MR1057609 (91g:01035)]
It's a video, but it's Smale, so...
