Suicide Squad director David Ayer has admitted he holds some regrets over the finished movie.

The film had a critical mauling upon its release last August, with many complaining that Jared Leto’s Joker didn't have enough screen time. Now, responding to a fan on Twitter, the director said he wishes he had a time machine so he could treat Leto’s character differently.

David AyerDavid Ayer has shared his regrets over Suicide Squad

A fan tweeted Ayer: “So thankful for suicide squad @DavidAyerMovies exactly the way it is. It's a masterpiece, don't let anyone tell you otherwise!”. Responding, the director said: “Thank you so much I know it’s a controversial film. really tried to make something different, with a look and a voice of its own.

“I took the inspiration from the insanity of the original comics. Making a movie is a journey, not a straight line. I learned so much,” he continued. "People want what they want, and everyone has a personal vision of how each character should look and walk and talk.”

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“If you set out to make a mass appeal movie, it’s easy to end up with vanilla. But I went for it. And I know Squad has its flaws, Hell, the World knows it. Nothing hurts more than to pick up a newspaper and see a couple years of your blood, sweat and tears ripped to shreds. The hate game is strong out there."

The director went on to say that the film was very commercially successful and introduced the world to more characters in the DC universe. However he admitted that he would do a lot of things differently, especially in regards to The Joker.

“Wish I had a time machine. I’d make Joker the main villain and engineer a more grounded story. I have to take the good and bad and learn from it. I love making movies and I love DC,” Ayer continued.

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“I’m a High School dropout who used to paint houses for a living. I’m lucky to have the job I have. I have to give the characters the stories and plots they deserve next time. Real talk. (And no, there isn’t a secret edit of the film with a bunch of Joker scenes hidden in a salt mine somewhere.)”

The director’s next project is Gotham City Sirens, a spin off focusing on Margot Robbie’s Harley Quinn. Last week Jared Leto hinted about the future of his character on Twitter, when he shared a photo of Alan Moore’s graphic novel Batman: The Killing Joke.