Late to the trend, but here are my movie titles changing one letter:
Middle-aged couples kvetch in exotic locales - Teen Things I Hate About You
The sequel to the above - Moanstruck
The sequel to the Birds, after the birds repent and hang around the nearest cathedral - Birds of Pray
An exposee of the cosmetic industry's obsession with whiteness - My Fair Leady
Miscommunication hilarity ensues on an ill-fated Bolshoi Ballet tour using local extras - Dancers with Wolves
This time, they're packing heat (but not too much) - Silencer of the Lambs
The garment industry seeks to create a trend in loungewear - Robing Hood
A plucky Hawaiian girl discovers her talent for flying when she is whisked to a wizarding school - Lilo & Snitch
There's a new resident in Mordor these days - The Return of the Kong
Speaking of post-canon Tolkien, a heist movie featuring a team that stayed behind in MirkGreenwood - Ocean's Elven
The craze for Asian chocolate-dipped sticks takes an unexpected turn the day they run out - The Pocky Horror Picture Show
Actually, there can be two - Thighlander
A drag cabaret with an award-winning menu - Priscilla, Queen of the Dessert
Just another day on the Venice Beach bus line - Speedo
Historical romance set in the pottery works, seeking a purified glaze colour - A Crockwork Orange