Heartburn (1986)

An autobiographical look at the breakup of Ephron's marriage to Carl "All the President's Men" Bernstein that was also a best-selling novel. The Ephron character, Rachel is a food writer at a New York magazine who meets Washington columnist Mark at a wedding and ends up falling in love with him despite her reservations about marriage. They buy a house, have a daughter, and Rachel thinks they are living happily ever after until she discovers that Mark is having an affair while she is waddling around with a second pregnancy.