- Awesome, Dear Boy: Hugh Grant considered himself retired from films, but was convinced to star in this mostly so he could work with Meryl Streep.
- Cast the Expert: Simon Helberg claims he was cast because he was a trained pianist like his character, and he auditioned primarily as a musician. He says that before the table read, Stephen Frears joked "now, time to see if you can actually act."
- Dueling Works: With Marguerite, a French film very loosely based on the life Florence Foster Jenkins.
- Dyeing for Your Art: Meryl Streep had to intensely train to in order to sing badly, and injured herself in the process because she was intentionally using bad vocal techniques at full volume.
- Irony as She Is Cast: Meryl Streep herself is a good singer - as a look at Mamma Mia!, Into the Woods and Ricki and the Flash will confirm. She actually studied to be a singer before she became an actress. In order to play Florence, she first had to learn the correct opera techniques - and then learn how to sing badly. She does get to sing well at the end of the movie during Florence's Imagine Spot
- Playing Gertrude:
- Florence died in 1944 at the age of 76. Meryl Streep was a full ten years younger. She had to have her costumes padded to make herself look older.
- Similarly, St. Clair Bayfield was 69 years old in 1944, whereas Hugh Grant was 55 at the time of the film's production.
Trivia / Florence Foster Jenkins