- Actor-Inspired Element: Melissa Rivers provided a lot of input on what her mother would have said for the scene where Joan Rivers gives Joy feedback.
- California Doubling: Massachusetts doubled for Texas.
- Dyeing for Your Art: Involuntarily. Although she wore a wig for the Important Haircut scene, Jennifer Lawrence accidentally snipped some of her own hair.
- Jossed: Jennifer Lawrence quashed rumors about Hostility on the Set between her and David O Russell, saying she was "having a blast" making the movie.
- Playing Gertrude: Robert De Niro is eighteen years older than Virginia Madsen, who plays his first wife. He's only eight years younger than Diane Ladd, who plays the grandmother. We hope Mimi is meant to be Terri's mother.
- Production Posse: Directed by David O. Russell and starring Jennifer Lawrence, Bradley Cooper, Robert De Niro and Elisabeth Rohm - all of whom he has worked with several times.
- Real-Life Relative: Melissa Rivers plays her own mother, the late Joan Rivers. Robert De Niro's daughter Drena also has a role.
- Star-Derailing Role: The film seems to have dented some of the good will that Jennifer Lawrence was riding in her career; although getting an Oscar nomination, the film underperformed and was given lukewarm reviews. Her performance in X-Men: Apocalypse was received rather negatively, and her next two projects - Passengers (2016) and Mother were box office bombs - and she did not release another film in 2017. Time will tell if it does lasting damage.
- What Could Have Been:
- The original script was for a more straightforward biopic of Joy Mangano. However David O. Russell wanted to make the film his way, and make Joy a Composite Character of various women who succeeded against all odds. Among the changes he made included adding the character of Peggy (who is completely fictional) and making Terry a singer (in real life he was a fellow business student at Pace University).
- The decision was made to have Mimi narrate the film late in production, well after Diane Ladd's scenes had already been shot.
Trivia / Joy (2015)