Watch Blackthorn (2011) HD Full Movie Free on SolarMovie. Watch Blackthorn (2011) online free. In Bolivia, Butch Cassidy (now calling himself James Blackthorn) pines for one last sight of home, a...In Bolivia, Butch Cassidy (now calling himself James Blackthorn) pines for one last sight of home, an adventure that aligns him with a young robber and makes the duo a target for gangs and lawmen alike.