They should put The Headless Horseman from The Adventures of Ichabod and Mr. Toad in Once Upon A Time. I mean come on, they put not just fairy tales or stories that takes place in medeval times, they also put in Victorian Era classics like Alice in Wonderland, Peter Pan and Frankenstein.
Considering The Legend Of Sleepy Hollow was written around the same time period all the other fairy tales were being collected, and actually is older than the traditional Grimm collection, I don't see why not. It fits the definition of fairy tale just as much as any of these other stories.
Iscreamer1 wrote: Who wants to see Big Hero 6 in OUAT?
Waaaaaay too recent and unrelated, tbh. Frozen I could put up with 'cause it's based off of a fairy tale and they've adapted it marvelously into the show. But a movie about a crime-fighting robot that looks like a cuddly anthropomorphic marshmallow? I'm not sure...