The title "7 pounds" is derived from the expression "pound of flesh" which in its original meaning refers to a terrible burden or debt which has to be repaid by whatever mean. Originated in Shakespeare s play Merchant of Venice, 1596
7 pounds 的出處來自Shakespeare寫的劇其中的台詞
"Antonio is unable to repay the loan at the specified date,
Shylock will be free to take a pound of Antonio s flesh"
引申為要去償還沉重到無法償還的債務的話,就用1磅的血肉吧