im vaguely aware they have ??some kind? of "skin-friendly" glue -- but still -- motion sweat -- wouldnt it slip?? Seems to me the mask slipping about would get very distracting? Thought i could make out a string under his hair holding it secure also --- but not sure.
I do have vast stage experience --- think i was 8?? and played Merlin in "something"... lol.
There's a wire that holds it on. In the scene where Christine first takes it off (after Music of the Night..."Stranger than you dreamt it...") when she picks it up and goes to hand it back to him you can see the wire.
Nillindeiel
"I won't touch Barton, not until I make him kill you. Slowly, intimately, in every way he knows you fear, and then he'll wake just long enough to see his good work and when he screams, I'll split his skull!"
~Loki to Black Widow, 'The Avengers'
"Are you ever not going to fall for that?"
"Humans think us immortal, shall we test that?"
~Loki to Thor, 'The Avengers'