- Big Name Fan: Hideo Kojima put this movie as the best one he saw in 2019 so far.
- Creator's Oddball: Peter Farrelly is mainly known for the crude comedies he directs with his brother Bobby. Here, he goes solo to direct a dramatic film covering a serious historic topic.
- Dawson Casting: Tony Lip was 32 during the events depicted. Viggo Mortensen was 60 during filming. Don Shirley was 35, Mahershala Ali was 44.
- Dyeing for Your Art: Viggo Mortensen gained 40 pounds for the role of Tony Lip.
Trivia / Green Book