Fry was filming the Sherlock Holmes sequel in England's Leavesden studios next to the set of the upcoming Harry Potter movie and couldn't resist taking behind-the-scenes pictures, which he promptly uploaded online.
One image showed Potter's school Hogwarts in tatters after being destroyed in a key battle between the boy wizard and his enemy, Lord Voldemort. Another showed Potter's home on Privet Drive looking "a little overgrown".
But Fry was forced to delete the images after they began circulating around the internet.
In a post on his page, he writes: "Ooops. I've been sent to the naughty step..." but did not elaborate his reason for removing the shots.
When one follower asked if Warner Bros. movie bosses were being overly cautious, Fry replied: "Your words, not mine..."