The 48-year-old filmmaker said he isn't too upset that his DC Comics movie has been slammed by critics because he had the "best experience" he's ever had on a set.
"Prefiero morir de pie que vivir de rodillas - Emiliano Zapata," he tweeted.
Ayer then explained, "Zapata quote is my way of saying I love the movie and believe in it. Made it for the fans. Best experience of my life (sic)."
The squad is made up of Will Smith as Deadshot, Margot Robbie as Harley Quinn, Jai Courtney as Captain Boomerang, Adewale Akinnuoye-Agbaje as Killer Croc and Jay Hernandez as El Diablo.
The cast also includes Cara Delevingne as Enchantress and Jared Leto as The Joker.
Some loyal fans have even taken out their anger by starting a petition to shut down review aggregator website, Rotten Tomatoes, where the film's current rating stands at 33 per cent.