Old-fashioned African adventure is entertaining despite its dated cheesiness with some effective shot-on-location exotic atmosphere. Stewart Granger has some presence as the legendary Allan Quatermain, though the rest of the cast is a bit bland - it has its slow, talky moments, but there are also some engaging set pieces. Not any kind of masterpiece, but entertaining enough for classic movie fans.
Moving people from one geographical location to another isn't exactly an adventure; there's no sense of epic spirit. There's hardly any music, which doesn't help, and their mission falls apart as the ending has virtually nothing to do with our heroes. The filmmakers had no idea to build suspense; everything is rushed and checked off in an unsatisfying way. The chemistry b/w Granger and Kerr is good though.