Oh god, thanks for the laughs! I’ve been getting ready for a move and needed a moment away from the boxes. Here is my contribution:
Rockcock Files
Sleazy in Seattle
Raging Buns
Deep Impact (some need no change at all!)
Robocock
Shaving Ryan’s Privates
Star Whores
A Spew’n Good Semen
The Whore-bit
A Tail And Two Titties
Chitty Chitty Gang Bang
The Loin King
The Little Spermaid
The Fox and the Porn-Hound
Penisoccio
Mr. Smith Cums In Washington
Mister’s Deeds
Why We Bite
I Can’t Fake It With You
It Happened Over And Over One Night
Our Mr. Fun
Girl with a Pearl Necklace
Guess Who’s Coming In Her
The Iceman Ejaculateth.
It’s the Great Blumpkin, Charlie Brown.
Mad Max: Fury Choad
IntoStella
Head Poets Society
Requiem for a Queef
The Wife of Brian
Reservoir Doggy
I Love Loosely
How about some current titles:
It Swallows
Titzels
Southpawed
Daisy-Chainwreck
Deep Inside Out
Me and Earl and the Dying Girl and Another Girl and Two Midgets and A Horse
Angels with Dirty Facials
I laughed out loud, god help me.
Flesh Gordon
Friends… With Benefits.
Brokeback Mountain 2: The Fur Traders.
Sex Trek: The Next Penetration
Penocchio: It’s not his nose that grows!
Jeremiah’s Johnson
Frisky Business
Nun Butt the Brave
Billy Jackoff
Cums a Horseman
I haven’t been in an Adult store in years, and certainly am not going now, but I’d bet about 40% of these mock titles could be found on the shelves if one was willing to look hard enough.
More to the 21st Century point, if you google each one in turn, you’ll probably support that 40% number (and possibly more).
And get in craptons of trouble if surfing at work in a place with strict HR policies about this kind of thing :eek:.
Schindler’s Fist
Gorilla in the Mrs.
ET: The Extra Testicle
Harry Potter and the Chamber of Pain
Titanic: Going Down
The Dark Knight’s Cock Rises
I see what you did there. 
IIRC one was actually entitled Thighs and Whispers.
Bergman porn.
Regards,
Shodan