Great Sleeper Movies of the 1960s?

They Shoot Horses, Don't They? (on YouTube in full for free)
-The Swimmer
-The Happy Ending (also on YouTube)
-Ladybug, Ladybug
-A Child Is Waiting
-An Autumn Afternoon
-Birdman of Alcatraz
-Dry Summer
-The Incident (YouTube)
-The Professionals
-The Face of Another
-Hombre
-Hunger (1966... a favorite of mine, was on YouTube)
-The Collector
-Il Sorpasso
-The Loneliness of a Long-Distance Runner (my favorite movie from the UK)
-David and Lisa
-Too Late Blues (best movie about music)
-His Days Are Numbered
-Never on Sunday (fun movie)
-Le Trou (might be the best prison movie)
-The Sign of the Leo
-Cairo 30
-Pitfall
-Woman In The Dunes (Teshigahara is my favorite Asian director)
-The Red Angel
-La Caza
-Carriage to Vienna
-Yesterday Girl (stylish, but with substance)
-The Round-Up
-Fists In The Pocket (really great realistic drama/horror regarding a family with some problems)
-Sands of the Kalahari (similar to "Flight of the Phoenix", and another movie made around the same time -- survival)
-The Hill (Sean Connery/Sidney Lumet - great prison movie)
-The Shop On Main Street
-Red Beard (one of Kurosawa's best)
-My Way Home (1965)
-Onibaba
-The Insect Woman
-The Pumpkin Eater
-Lord of the Flies
-The Organiser (1963)
-The Fire Within
-Pale Flower
-Ride the High Country
-Knife In The Water (Polanski's best)
-Mamma Roma (might be my favorite Pasolini)
-Lonely Are The Brave (Kirk's favorite movie)
-Two Half-Times In Hell
-Sundays With Cybele
-All Fall Down
-The End of the Summer
-One-Eyed Jacks (underrated Western. Only movie Brando directed)
-Two Women
-Accatone
-Romeo, Julie a tma
-Purple Noon (the Original Mr. Ripley)
-Peeping Tom
-Elmer Gantry
-Late Autumns
-Kapo
-Eyes Without a Face