"Nationwide" featured an amazing collection of apprentice impersonators. From all over Britain, schoolchildren materialised via local studios to give us their imitations of the mighty. There were at least three uncannily accurate Margaret Thatchers, their eyelids fatigued with condescension and their voices swooping and whining like dive-bombers.
In the movies first impressions are everything. Or, to put it less drastically, in the movies there are no later impressions without a first impression, because you will have stopped watching. Sometimes a critic persuades you to give an unpromising-looking movie a chance, but the movie had better convey the impression pretty quickly that the critic might be right.