Saw this yesterday. I can't imagine it'll win any awards, but it's hugely entertaining.
Anthony Hopkins' performance goes from Alfred Hitchcock to Hannibal Lecter & everywhere in between, but he looks like he's having great fun with it, & the makeup isn't too distracting. Helen Mirren is probably the real star of the show though.
Very good supporting cast too (nice to see Michael Wincott again!) & lots of nice little touches & details for fans of Hitchcock & Psycho.

from me.
Must now watch the BBC thing to see how Toby Jones compares...