Statistics for movie trivia: identify the half-decade by films' names

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Hint = films' names	Answer = half-decade of the film (early '40s, late '80s, etc.).	% Correct
The Magnificent Ambersons, Bambi, Casablanca, The Maltese Falcon, Dumbo,	early '40s	96%
Schindler's List, Reservoir Dogs, Groundhog Day, Short Cuts, Sleepless in Seattle	early '90s	82%
Vertigo, Touch of Evil, South Pacific, The Bridge on the River Kwai, 12 Angry Men	late '50s	80%
Harold and Maude, The Last Picture Show, What's Up, Doc?, McCabe & Mrs. Miller, Deliverance	early '70s	71%
Snow White and the Seven Dwarfs, You Can't Take It With You, Bringing Up Baby, The Life of Emil Zola	late '30s	71%
City Lights, M, Frankenstein, Duck Soup, King Kong	early '30s	69%
Animal House, Midnight Express, Annie Hall, The Deer Hunter, Slap Shot	late '70s	69%
Slumdog Millionaire, Juno, Anvil: The Story of Anvil, Ratatouille, Sicko	late '00s	67%
Tootsie, Das Boot, Chariots of Fire, Zelig, Tender Mercies	early '80s	64%
The Bishop's Wife, Gentleman's Agreement, Treasure of the Sierra Madre, Monsier Verdoux	late '40s	60%
The African Queen, High Noon, Roman Holiday, Gentlemen Prefer Blondes, Strangers on a Train	early '50s	58%
Adaptation, School of Rock, Bowling for Columbine, Lost in Translation, Confessions of a Dangerous Mind	early '00s	56%
The Princess Bride, Die Hard, Moonstruck, Raising Arizona, The Last Emperor	late '80s	53%
L.A. Confidential, The Big Lebowski, The Ice Storm, Run Lola Run, Grosse Point Blank	late '90s	51%
The Birds, 8 1/2, Hud, The Man Who Shot Liberty Valance, Lawrence of Arabia	early '60s	49%