King of the Khyber Rifles (1953)

Freshly arrived Sandhurst-trained Captain Alan King (Tyrone Power), survives an attack on his escort to his North-West Frontier Province garrison near the Khyber Pass because of Ahmed, a native Afridi deserter from the Muslim fanatic rebel Karram Khan's (Guy Rolfe) forces. King was born locally and speaks Pashtun. As soon as his fellow officers learn his mother was a native Muslim (which got his parents disowned even by their own families), he falls prey to stubborn prejudiced discrimination. Lieuenant Geoffrey Heath (John Justin) even moves out of their quarters. Brigadier General J. R. Maitland (Michael Rennie), whose policy is full equality among whites, learns King knew Karrum Khan as a boy and charges him with training and commanding native cavalry. The general's daughter, Susan Maitland (Terry Moore), takes a fancy to King, even falls in love, but the general decides to send her home to England after a kidnap attempt which was foiled by King. King volunteers to engage Karram Khan, the only man who can bring the normally divided local tribes together in revolt, pretending to have deserted.