"We're loosing your signed card in the center of the deck" (even though it's at the top). Yes, this is a blatant lie. Almost everything Derren Brown says about his "psychological studying" or whatever as his method is a lie.How is it lying, if it is part of an art form? Would you say that a theater actor who pretends to be stabbed is lying? No
Just because some people lie doesn't mean that all people are liars, and vice versa. Yes, some magicians are NOT liars. At the same time, other magicians are.
And yeah, people do call out Hollywood for lying quite often...