Inside the issue - which is available for just £1.99 on your iPad - Farrell says that he's always enjoyed his co-star's work.
“Good luck to him," he says. "I think he'll do a great job. As an actor, I don't know that I know anyone that's improved as much as he has. That sounds like a shit thing to say.
"In Argo, it was such a controlled performance, I think he'll kill as Batman, I hope he does and shuts the naysayers up."
Farrell's next film, A New York Winter's Tale, opens in the UK on 21 February 2014.
For more from Farrell, pick up the brand new issue of Total Film, which is out now, and includes an exclusive look at The Amazing Spider-Man 2, Godzilla and The Lego Movieand many more exciting new movies, plus we chat with Zoe Saldana.
And because January can be a depressing old month, we've also got an amazing bumper giveaway. There's a FREE official Man Of Steel movie guide for every reader, plus three e-books (Nexus by Ramez Naam, Scare Me by Richard Parker and Blackwood by Gwenda Bond) courtesy of Angry Robot, Strange Chemistry and Exhibit A.
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