An international trailer for the movie was released during filming, showing the fictional setting in which Tony Jaa's character is being rescued in the jungle by a group of martial artists of various styles, and trained to unify these different systems. However, production still encountered financial problems as it came to a close. In order to complete the production on time, the filmmakers decided to end "Ong Bak 2" with a cliffhanger ending, and then continue the story in a sequel, "Ong Bak 3", which was announced to begin production for a 2009 release.