 After the police fire at the train, Sgt. Deke Yablonski  (Charles Durning (qv)) says, "What is this, Gunfight at the O.K.  Corral?". Burt Lancaster (qv) and Kirk Douglas (I) (qv) both  starred in _Gunfight at the O.K. Corral (1957)_ (qv); Lancaster  played Wyatt Earp, and Douglas played Doc Holliday in the classic  western.