De Schippers van de Kameleon (2003) is a Dutch family film with main characters identical twins Koen van der Donk (Hielke Klinkhamer) and Jos van der Donk (Sietse Klinkhamer). The actors are also identical twins, born March 6, 1988. The film is based on the books of about the adventures of the twins with their boat, the opduwer De Kameleon. The film also has a sequel, Kameleon 2, with the same characters and actors. In 2021, it was followed by a second sequel De Kameleon aan de ketting.