Film director Christopher Nolan told the press this week that he's still working on the final script for the next big budget Batman film.

The director, who is currently rewriting his brother Jonathan's first draft, joked that he's hopeful that Warner Brothers will greenlight the project. (It's fairly certain since it's already been one of the most successful franchises in its history).

At an Italian press conference for his most recent film Inception, Nolan said: 'I don't like to talk too much about things until I'm further along with them. I'm working on the script right now. My brother Jonah has done a draft of the script and now I'm writing on it.'

When asked if Warners had officially confirmed the project, the 40-year-old said: 'We have set a release date and as far as the film being officially greenlit - they haven't told me they don't want to do it. So I'm hopeful!'

The new film is scheduled to be released on July 20, 2012.