What most people know about “Butch Cassidy and the Sundance Kid” all comes from a 1969 film starring Paul Newman and Robert Redford. But a whole chapter of their lives was left out of that film.
Before running away to Bolivia, they first went to Buenos Aires. They were living large and enjoying the cafe lifestyle. But eventually they decided all the curious eyes around them made it too easy to get caught in Buenos Aires. They created pseudonyms for themselves, and setup a profitable ranch in a remote part of the Patagonia pampas called Cholila. At one point, they even hosted a party at their ranch where the governor of the provenience played samba and guardia vieja tangos on his guitar! So it is possible, between their experiences in Buenos Aires, and in Cholila, that the outlaws did a bit of tango dancing while they were in Argentina.
Despite putting on a pretty good front as straight laced gentlemen ranchers, they were linked to a robbery they did not directly participate in. Soon after, Butch Cassidy and Sundance were back to robbing banks and being on the run.