Sherlock Season 3 Behind the Scenes

We know this scene produced one sexy GIF, but the series production designer gives us a look into that heart-stopping moment that's post-hair toss and pre-fan screaming, with the caption: "The most difficult of scenes !!"

"Face off!"

"And here's me at the front door. Helpfully, I'm pointing out the number." — Louise Brealey who plays Molly Hooper.

"Since you've all been so nice — apart from the odd man who wanted to fuck me in half — here's Rupert in Una's hat." — Louise Brealey

"What do you mean you didn't press the shutter!" From Steve Lawes, director of photography on the second episode, "The Sign of Three," with a totally different perspective on the flashing cameras when Watson and Mary emerge from the church on their wedding day.

Getting the perfect just-jumped-from-the-rooftop scarring isn't easy.

Before fake Sherlock dropped from the rooftop, he checked out the view with some help from the crew.

Somehow this moment, as shared by director of photography Steve Lawes, didn't make it to the final cut of season three.

Amanda Abbington, who plays Mary Morstan, John Watson's wife, thanked the crowd who turned out to glimpse a view of Sherlock season three filming: "And that's a wrap . . . "

You thought 221b Baker Street was a real apartment? "A view from the back of 221" tweeted by pannerscenery says otherwise.

The making of that scary tube car from episode one, "The Empty Hearse."