If I never read the phrase "scenery-chewing" in my TV guide again it will be too soon.
I think barely a week goes by when it is not slipped into one tired review or other.
And I always go.... Eh?
Does it just mean overacting? Well a quick search in my Egg-poaching advisor refers to it as hamming it up in a overdramatic way as if you were going to consume your surroundings, borne of the theatre and used over a century ago.
As an overused cliche, it is of course the reviewer who is over-reaching and hamming it up in a melodramatic fashion, peddling an old performance without flair or nuance.
I assume the irony is lost on them.