And though the door doesn't appear in the videos that Reynolds posted, his wife, Blake Lively, shared a photo of the two of them with him in his Deadpool suit (which he is wearing in the video) in front of the same window.

Swift and Lively and Reynolds have all been close friends for many years, with Lively even making her directorial debut with the music video to Swift's "I Bet You Think About Me." The Deadpool video and Swift's short film sharing a filming location is probably nothing more than a favor between friends, or a fun coincidence for the most discerning of fans, but with Reynolds' penchant for teasing and Swift's longtime use of Easter eggs and hidden hints, who knows?