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• Christopher Nolan’s first choice for the role of Harvey Dent was Matt Damon. But Damon turned it down. Many actors were considered in the cast before settling for Aaron Eckheart, including hugh Jackman, Ryan Phillippe and Josh Lucas to name a few.
• One bat suit was customized with nipples much the same as in Batman & Robin in 1997, as joke. The crew presented it to Christian Bale as the real bat suit, but immediately knew it was a joke. Fortunately, he got a glimpse of the design in pictures during the pre production. Although he still wore it and posed for publicity photos in the nipple suit.
• This is obviously the first Batman film to NOT have “Batman” in its main title.
• When the press asked why they chose Heath Ledger for the Joker role, Nolan replied “because he’s fearless”.
• Heath Ledger lived alone in a hotel room for a month to prepare for his role as the Joker. He wrote a diary and kept Joker’s thoughts and feelings to guide himself while portraying the character.