Saul Zaentz, Jack Nicholson, Louise Fletcher and Michael Douglas of “One Flew Over the Cuckoo’s Nest,” pose for photos at the Oscars. AP Douglas, of course, was right.

In honor of the 50th anniversary of the Oregon-filmed Oscar winner, “One Flew Over the Cuckoo’s Nest” is returning to theaters for a special screening on Wednesday, July 16.

As the Academy Award-winning film One Flew Over the Cuckoo's Nest marks its 50th anniversary, on-screen portrayals of mental illness and treatment have evolved.

Douglas, of course, was right. “One Flew Over the Cuckoo’s Nest” would go on to sweep the “big five” — screenplay, director, actor, actress and picture — the first film to do so in ...