premise: Mackintosh and T.J. is a 1975 American modern day Western film starring Roy Rogers in his last feature film appearance in a film that was specifically written for him. Prior to this film his most recent feature film appearances were in the Bob Hope films "Son of Paleface" (1952) and 1959's "Alias Jesse James" (a cameo).
hypothesis: Rogers' last feature film was one of Hope's films. 
reason: The statement says that Roy Rogers' last feature film was Mackintosh and T.J. and since this film wasn't attributed to Bob Hope and the other two mentioned films were listed as "Bob Hope films," we can safely assumed Rogers' last feature film wasn't one of Bob Hope's. I think the system had trouble with it because it didn't recognize the inclusion of two films under Bob Hope's ownership. 