Batman v Superman director and Star Wars fan Zack Snyder has created the ultimate Star Wars/Justice League mashup. Titled ‘Dark Side Knight vs. Superjedi’, the two-minute trailer depicts Superman as a Jedi and Batman as Darth Vader (probably because both characters love black).
Snyder released the trailer to celebrate the imminent release of Rogue One: A Star Wars Story and as a tribute of sorts to his friend and colleague J.J. Abrams’ own crossover video, the Millenium Falcon/Batmobile tribute “Hunka Junk.”
One thing that Snyder’s trailer definitely makes clear: Batman v Superman would have been a lot better with lightsabers.
https://www.youtube.com/watch?v=EcikZF6moZs