Werner Herzog's disappointing, none-too-convincing Rescue Dawn is a fictional reworking of his documentary about Dieter Dengler, the German-born US navy pilot shot down over Laos in 1966 and assigned by the Viet Cong to a jungle prison camp with no prospect of release. After some months he outwits his dimwitted Laotian guards and, after a struggle for survival with an American comrade, makes it to the Thai border and is picked up by a US helicopter. Christian Bale does well as Dengler.