Look Back in Anger has its unarguable importance as the beginning of a revolution in the British theatre, and as the central and most immediately influential expression of the mood of its time, the mood of the "angry young man".

----John Russel Taylor

When the play was first produced by the English Stage Company London's Royal Court Theatre, Kenneth Tynan wrote in the Observer:

'...a minor miracle. All the qualities are there, qualities one had despaired of ever seeing on the stage...the best young play of its decade.'