Watch Rio Bravo (1959) Online
No-nonsense Texas border sheriff John T. Chance (John Wayne) fights off ruthless mercenary gunmen in order to keep a murderer in custody. A ragtag band of volunteers, consisting of a singing kid, a toothless old man, a recovering alcoholic, and a spunky woman, assists. Contains an interesting sing-along interlude among the group, and yes, the Duke participates.
Watch: Rio Bravo Trailer