Justice League: Mortal - What Really Happened?

3. Derailed By A Writer's Strike, And An Australian Film Council

Unfortunately, Justice League: Mortal became a victim of the 2007 Hollywood Writers' Strike, which delayed production for several months. Come 2008, and the film was set to begin production, only for progress to be derailed by the Australian Film Commission.

Miller, himself an Australian, wanted to film Mortal entirely down under, which would've brought dozens of jobs and millions of dollars to the country, but his attempts were eventually scuppered by the Film Commission, who felt as though there weren't enough Australians in the main cast to qualify Warner Bros. for a 40% tax rebate.

Production had already been delayed by several months at this stage, but WB were still determined to meet the film's original premiere date of summer 2009. However, production was subsequently shifted to Vancouver, by which point The Dark Knight then released, fundamentally altered the comic book movie landscape, and the studio had decided to shift their strategy to focus on solo superhero features instead.

So, there you have it folks. The cancellation of Justice League: Mortal gave us Green Lantern. Brilliant.