Whatever your opinion on Jared Leto’s performance as the Joker in Suicide Squad, the choice to remove most of the footage that was shot for the character left the Harley/Joker subplot and the Joker character feeling shortchanged.  While the complete cuts of these scenes are not yet available (and WB may never fully release these scenes because word is they were not happy with the results), you can get a better idea of all the other Joker scenes that were originally filmed for the movie.  Enjoy.