Summary: An intriguing movie that explores selective erasure of memories. Storyline: To ease his pain, a heartbroken guy decides to undergo an operation to permanently erase all memories of his beloved. While the operation is in progress, he starts having second thoughts. He realizes that many moments being erased were really pleasant and he doesn't want to lose them.
A memorable quote from the movie:
"How happy is the blameless vestal's lot!
The world forgetting, by the world forgot.
Eternal sunshine of the spotless mind!
Each pray'r accepted, and each wish resign'd"
The above lines are from a poem 'From Eloise to Abelard' by Alexander Pope. Explained very well here. Cut n paste from the article:
The first line states that an innocent pure woman is a happy one.
The second line is reinforcing the first, stating that the woman's happiness is due to forgetting about the world's woes, and being forgotten by the world. In other words, she neither worries about the world, nor does the world worry about her. She has forgotten, and has been forgotten.
The third line is again referencing forgetfulness, stating that a mind unclouded or spotted by memory is in eternal brightness, or sunshine.
The fourth line states that her every prayer has been accepted (her prayer is for forgetfulness), and that she's given up all claims on any wishes she might have, save to forget.
In short, she is happy only because she has prayed for and received the gift of forgetting everything she's been concerned about. There is an old adage that ignorance is bliss, and such is the case for this woman.
Incidentally, the words may come from the movie, but they are originally from a poem by Alexander Pope titled Eloisa to Abelard."