John Wayne and Victor French in Río Lobo (1970)

Conrad Hool, Chuck Courtney, Jim Davis, Chuck Hayward, Mike Henry, John Hudkins, Frank Kennedy, George Plimpton, Robert Rothwell, and Bob Steele in Río Lobo (1970)

Jack Elam and Victor French in Río Lobo (1970)

John Wayne and Howard Hawks in Río Lobo (1970)

John Wayne, Don 'Red' Barry, and Jorge Rivero in Río Lobo (1970)

John Wayne and his son, Ethan, on location for "Rio Lobo," Cinema Center 1970.

John Wayne and Bill Williams in Río Lobo (1970)

John Wayne and Christopher Mitchum in Río Lobo (1970)

John Wayne and Jennifer O'Neill in Río Lobo (1970)

John Wayne, Christopher Mitchum, and Jorge Rivero in Río Lobo (1970)

John Wayne, Jack Elam, and Christopher Mitchum in Río Lobo (1970)