Writers:

Bryan Forbes (screenplay), Kingsley Amis (novel)

Stars:

Peter Sellers, Mai Zetterling, Virginia Maskell

 

Welsh librarian John Lewis (Peter Sellers), unhappily married to Jean Lewis (Virginia Maskell), falls in love with the glamorous Elizabeth Gruffydd Williams (Mai Zetterling). Zetterling is likewise saddled with a dull spouse, wealthy Vernon Gruffyd-Williams (Raymond Huntley). Finding themselves to be kindred spirits, Sellers and Zetterling plan an illicit affair. Alas, none of their carefully calculated schemes for a romantic tryst come to fruition thanks to a series of comic (but utterly credible) complications. John ultimately concludes that adultery simply isn't worth the bother.