Speaking at the launch of actor Richard E. Grant's new fragrance, Jack, at Liberty, Fellowes said the actor found himself in hot water recently over a photo he posted online.
“He’s very naughty. The trouble we’ve had with things like Twitter," Fellowes said.
“We had to explain to the cast about the dangers of tweeting as no one realized how interested everybody was in the show. You’re in a bubble when you’re filming," he added. “You’re just tweeting these nice things and you don’t realize there are millions of people worldwide trying to pick up the plot.”
Fellowes didn't make it clear what specifically was the subject of Grant's questionable photograph, but here's one of him looking dapper on the set:
On DOWNTON ABBEY duty this fine LickYourPlateCleanFriday pic.twitter.com/prbKLHdBee— Richard E. Grant (@RichardEGrant) March 28, 2014