This movie was filmed at Warmsprings State Mental Hospital between Anaconda Montana and Deerlodge Montana and the cast and crew stayed at Fairmont Hotsprings Hotel/Resort(closer to Anaconda).I grew up at a village called Ramsay,not far away, and we often went to Fairmont to swim and drop a few coins at the arcade afterwords and I remember seeing some of the cast for this movie in the hotel lobby or walking to the hotel restaurant.I didn't know Morgan Woodward's name but knew his face from Coolhand Luke,Gunsmoke episodes and other TV westerns. Gee he was tall,must have been 6'8" or more it seems.I don't recall seeing Alan Arkin but I remember his son,Adam, playing a pinball machine and a bunch of kids gathered around. None of us knew who he was but years later,seeing him on TV,it "clicked".