During a break in the filming of season 2, Anthony Head and Bradley James share a lighthearted moment with another cast member. The castle that "plays" Camelot is a real location, the Chateau Pierrefonds in France, which as a public landmark could not shut down for filming - crews and actors often worked around visiting tourists.
What's It Like Behind the Scenes of 'Merlin'? [Exclusive Photos]
New episodes of "Merlin" air Fridays at 10 PM on Syfy.