With the box office success of Ong Bak 2, Sahamongkol Film was quick to announce their intention to film this sequel. Filming of new footage for the follow-up will begin before the end of the year and will also incorporate unused footage from Ong Bak 2. The studio hoped to have the film in theaters in December 2009, but the new release date will be in May 2010.
Sia Jieang, an Executive of Sahamongkol, stated the film will feature more fights between Dan Chupong and Tony Jaa. Moreover, in Ong Bak 3 Tien's legs and arms will be damaged by torture and require Jaa's character to "fight with some sort of boneless action. This is homework for Panna Rittikrai and Tony Jaa to create the action for us to see what it will look like to fight in the state of boneless condition." Kongdej Jaturanrasamee, screenwriter of the Thai fantasy film Queens of Langkasuka, has been signed to write the script. In addition, the expensive set for the Khmer Palace has already been completed and seen by the press.
The Ong-Bak 2 DVD has never-before-seen footage of Ong Bak 3.
