Mamma Mia! (2008)

Most people think so. 82% of audiences gave it a thumbs up, by Google's archived audience score. Critics scored it lower at 53%, but audiences disagreed.

A spirited young bride-to-be living with her single mother on a small Greek island secretly invites three of her mother's ex-boyfriends in hope of finding her biological father to walk her down the aisle. Wikipedia ↗

Mamma Mia! is a 2008 musical romantic comedy directed by Phyllida Lloyd, based on the wildly successful stage musical built around the songs of ABBA. Meryl Streep stars as Donna Sheridan, a free-spirited single mother running a hotel on a fictional Greek island, whose daughter Sophie, played by Amanda Seyfried, secretly invites three men from her mother's past — played by Pierce Brosnan, Colin Firth, and Stellan Skarsgård — to her wedding, hoping to discover which one is her biological father. The film's appeal was built entirely on the irresistible combination of ABBA's catalog and a cast of prestige actors joyfully abandoning dignity to belt out pop songs on a sun-drenched Greek island.

Meryl Streep threw herself into the musical numbers with infectious enthusiasm. Pierce Brosnan's singing, while technically challenged, was endearingly committed. Mamma Mia! earned $609 million worldwide on a $52 million budget, making it one of the highest-grossing musical films in history.