The original Suicide Squad movie had hours of Joker footage that was cut from the final version.
One deleted scene showed Joker's breakout from Arkham Asylum and Harley Quinn obtaining her signature weapon.
Another deleted scene revealed Joker's therapy sessions and his past trauma.
Joker's genuine affection for Harley Quinn was shown in a deleted scene where he stops his henchman from killing her.
The original Suicide Squad movie had more interaction between Joker and the DC character Monster T.