ROLL AND ROLL
20 film titles with 10 words or more:
1 Come Back to the Five and Dime, Jimmy Dean, Jimmy Dean
2 A Funny Thing Happened on the Way to the Forum
3 The Saga of the Viking Women and Their Voyage to the Waters of the Great Sea Serpent
4 The Incredibly Strange Creatures Who Stopped Living and Became Mixed-Up Zombies
5 Oh Dad, Poor Dad, Mamma's Hung You in the Closet and I'm Feeling So Sad
6 The Adventures of Buckaroo Bonzai and the Hong Kong Cavaliers in the Eighth Dimension
7 Who is Harry Kellerman and Why is He Saying Those Terrible Things About Me?
8 Sword of the Valiant: The Legend of Sir Gawain and the Green Knight
9 Pirates of the Caribbean: The Curse of the Black Pearl
10 Can Heironymus Merkin Ever Forget Mercy Humppe and Find True Happiness?
11 The Englishman Who Went Up a Hill But Came Down a Mountain
12 Went To Coney Island On A Mission from God ... Be Back By Five
13 Been Down So Long It Looks Like Up to Me
14 Night of the Day of the Dawn of the Son of the Bride of the Return of the Terror
15 Don't Be a Menace to South Central While Drinking Your Juice in the Hood
16 Dr Strangelove, or How I Learned to Stop Worrying and Love the Bomb
17 Sherlock Holmes in the Singular Case of the Plural Green Moustache
18 The Effect of Gamma Rays on Man in the Moon Marigolds
19 Those Magnificent Men in Their Flying Machines, or How I Flew from London to Paris in 25 Hours 11 Minutes
20 The Persecution and Assassination of Jean-Paul Marat as Performed by the Inmates of the Asylum of Charenton Under the Direction of the Marquis de Sade
Barred from the list: a) long sequel names b) early descriptive film titles such as Man Going Over the Old Willy Waterfall While Strapped in a Barrel c) documentary feature titles such as Tears and Beers, the Tragic Story of the 1976 All-England Ale Drinking Championship (these last two made up) d) unverifiable foreign titles
Source: various (no more needed, thanks) Thanks to Andy K for the idea.