armadillo, on 19 February 2013 - 10:47 AM, said:
On the one hand, give him a break, he's 87. On the other hand, it's not fair on the paying audience if he's not up to the job when Churchill-impersonators aren't exactly thin on the ground

Does the audience pay a full ticket price for previews? Assuming they are buying a reserved seat, not a day seat.
I think it would be interesting to see a little "reality" injected into a play-event during previews, as long as it wasn't ridiculous -- like being kept waiting on the sidewalk (pavement) outside the theatre past curtain time while something is ironed out before the audience is allowed in (Broadway play; does this sort of thing happen in London?).
Or, as one time happened, being sent away from an off-Broadway preview without ever entering the theatre. No idea what happened. Play just disappeared. Guess it had to do with $.