Yes, Charlie Chan does a mean Rumba in The Red Dragon, our Monday Night Chat Room Movie at Rush Glick's www.charliechan.info (8:00 P.M. to 10:00 P.M. [EDT], we start our tapes/DVD's at 8:30).
"At the Capitol Night Club, cutting in on son Tommy, Charlie Chan asks questions as he dances the rumba with artist Iris Ling."
(Courtesy of Rush's http://charliechangallery.tripod.com/id43.html.
I found two websites that show how to do the Rumba (aka Rhumba).
The first one has a diagram showing the dance steps at http://www.laventure.net/tourist/rhumba.jpg.
The other one has dance steps plus background material at http://nfo.net/dance/rhumba.html.
. . .