Like most people I came to know Bergman for his later films, like Persona and Autumn Sonata, and so was surprised, albeit pleasantly, to unearth A Lesson In Love. It still contains many elements of 'classic' Bergman, in that it's about unstable love in unstable lives, but it's much less intense than his later films. This is written about as being a comic film, which it isn't really if we're thinking of comedy in its classic sense, but if we're thinking of art-house comedy, then it qualifies in the same way that Kieslowski's Three Colours White or Dekalog 9 are comedies, which means that its comedy is all quite dark and a little sadistic underneath.
The plot considers a couple who have grown apart, have taken lovers and are now thinking of divorce. However, the husband has second thoughts and chases his wife to Denmark, where she is going to meet her lover, who happens to be the man she ditched at the altar for her current husband. They meet on the train and discuss their past, which is retold through flashbacks, before meeting with her lover in Copenhagen. I won't give away what happens here for fear of ruining the film for anyone, but it contains some comic elements and was possibly my least favourite part of the film.
Alongside the main plot of husband and wife is their daughter's life. She is tormented about her existence as a woman and longs to be a boy, much to the distress of her family. Her long chat with her father about her mother and their dying marriage was the highlight of the film for me - tender and beautifully paced Bergman at his best.