Gunn, best known for helming two "Guardians of the Galaxy" films, was fired by Marvel in August this year after his old, offensive tweets resurfaced on Twitter.
"Suicide Squad", written and directed by David Ayer, featured an ensemble cast of Will Smith, Margot Robbie, Jared Leto, Joel Kinnaman, Viola Davis, Jai Courtney, Scott Eastwood, and Cara Delevingne.
Released in 2016, the film raked in close to USD 750 million at the global box office, despite being criticised by the reviewers.
After his firing, Gunn had received support from "Guardians of the Galaxy" cast, including Chris Pratt, Zoe Saldana, Dave Bautista and Bradley Cooper. They even penned a letter to Disney asking for his reinstatement.
Bautista, one of the most vocal supporter of Gunn, shared the news and tweeted, "Where do I sign up!".
Ayer welcomed Gunn aboard and wrote, "I think it's an incredibly brave and smart move by the studio. James is the right man for the job!".
(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)