Interesting thing is if you ship Harley/Floyd, you can use some of their scenes from the Focus movie to manipulate into a Harley/Floyd scenes in the video.
You can make like this triangle video of Joker/Harley/Floyd of Harley always going back to Joker, ad Floyd not really wanting her to because he's worried for her safety.

Like this is a scene they shared in focus. lol You can make it so Deadshot vs Joker for Harley. lol

If I actually felt like making it, I actually would.