National Theatre Live: The Importance of Being Earnest

There is infrequent very mild bad language ('God').

There are mild, comic references to making love, flirting and celibacy, and a woman makes a cheeky remark to a man about intending 'to develop in many directions'. In the course of kneeling to make a marriage proposal, a man's head is unintentionally placed in a suggestive position in front of the woman.

Actors on stage mime smoking, which reflects the historical era in which the play is set.

A man makes a figurative remark about shooting himself if he agreed with something he's been told.