5. Harrison Ford and Calista Flockhart - No date has been publicly announced for the wedding of Harrison Ford, 67, to his longtime lady love Calista Flockhart, 45, but, after almost a decade together, the couple doesn’t seem to be in a big hurry anyway. The low-key couple, who have a 22-year age difference, reportedly got engaged in 2009 so that Harrison could be more of an official parent to Calista’s 9-year-old adopted son Liam, who was just an infant when Calista and Harrison first started dating. Harrison Ford To Wed Calista Flockhart
6. Woody Allen and Soon-Yi Previn - Not only do Woody Allen, 74, and Soon-Yi Previn, 39, have a whopping 35-year age difference, they also hold a record for being the most controversial couple in Hollywood. Woody was in a long-term relationship with Soon-Yi’s adopted mother, Mia Farrow, when the couple first became an item. As an explanation, Woody once told a reporter: "The heart wants what it wants. There's no logic to those things. You meet someone and you fall in love and that's that."
7. Demi Moore and Ashton Kutcher - What list of age gap couples could be complete without mentioning the woman who virtually created the cougar trend? 47-year-old Demi Moore may look preternaturally young, but she and her boytoy husband Ashton Kutcher, whom she met in 2003, have a 15-year-difference between them.