Cornell Wilde flirts with Donna Reed in Beyond Mombasa
Once Ralph Hoyt admitted he was only a lay missionary you could add him to the list of suspects, especially since Genn gives the sort of meek-and-mild performance that becomes increasingly suspicious as the film proceeds into the jungle, arriving finally in the ruins of an older civilization where our protagonists end up besieged by the leopard men and a white ally. I will spoil things only partly by letting you know that even before audiences identified him with movie villainy, Christopher Lee made a good red herring.
The three-way bickering of Wilde, Lee and Randall keeps things pretty hard-boiled most of the way, and when the film finally goes over the top it has the lurid flavor of men's adventure magazines of the period. I like that in a Fifties movie, and while Mombasa has no delusions of grandeur it does provide 90 minutes of two-fisted fun for those who appreciate that sort of thing.