The "Philadelphia" comment by John Wayne does not refer to Shirley Temple or Fort Apache. It refers to an exchange earlier in the film between Wayne and Marian McCargo. Wayne tells her about his (Col. Thomas') ex-wife, who "was trying so hard to be a lady, she forgot how to be a woman". Thomas' ending remark was how she was happy, "living in Philadelphia, giving piano lessons...". Another interesting sidelight, the actor playing Gen. Rojas, Antonio Aguilar was a rather well-known, major actor in Mexican films, hence his high billing in this film. Wayne is well served by his "stock company" of western actors that he used in many of his later Westerns. You will see many of the same actors used in Chisum, Rio Lobo, Big Jake and Cahill, US Marshall. John Agar is listed in the credits but other than a single shot of him (one of Wayne's riders sitting on their horses in the rain, when Wayne is resigning from the Army), he doesn't seem to be in the film.
Review of The Undefeated
