East of Sudan (1964)

Aside from the fact that much of this seems to have been cannibalised from "The Four Feathers" (1939), it makes for quite an entertaining action adventure with Anthony Quayle ("Baker") and Sylvia Sims ("Miss Woodville") trying to help smuggle the young daughter of the Emir of Barash "Asua" (Jenny Agutter) through the lines of the Mahdi's army that is challenging the British in the Sudan. It's a cheap and cheerful adventure, with a minimal budget and some rather static indoor sets that let it down rather - and Quayle was always a much better stage actor than he was on screen, but that said there's a little chemistry on screen between the two leads and just enough action to keep the thread from unravelling. Not a film you are likely to recall seeing, but it is still watchable in a boy's own adventure sort of way.