"To Rio Bravo, Brennan brought his own brand of realism. He explained his reaction to the script to reporter Steven H. Scheuer: They tell me I'm playing a crippled old man who's got a rifle built into his crutch. Any time they get rough with him, he shoots them down with his crutch. I think about this for a little while, and then I asked them a simple question. I said, "When this crippled old man picks up his crutch and shoots why doesn't he fall flat on his doggone back?" They changed the script."