The Forbidden Kingdom (2008)

While rummaging around for some bootleg kung-fu DVDs in a pawn shop in Boston's Chinatown, Jason discovers an ancient golden staff. When he examines the staff closely, he finds himself magically transported back to ancient China where he is quested to free the fabled warrior, the Monkey King, with the help of a kung fu master and a misfit warrior. If he doesn't succeed, hey may be trapped deep in the past forever.