Ahead of the film's premiere at Comic-Con International, a scene from the R-rated "Batman: The Killing Joke" animated film has surfaced, revealing a surprising romantic encounter between Batman and Batgirl.

Here's the moment we're talking about:

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idk how to feel about this pic.twitter.com/gsBGHsYet5- ☕ (@AcroNite7) July 22, 2016

With an R-rating, "The Killing Joke" has license to tackle more mature subject matter than other Batman animated films we've seen. In particular, the film touches on Batman and Batgirl's sexuality in a more adult manner. A later scene reveals that, even for a hero of Batman's stature, introducing sex into a work relationship is a problem if you aren't ready to deal with the fallout.

The scene is also notable for marking a major departure from Alan Moore and Brian Bolland's original "The Killing Joke," which didn't indicate a Bruce Wayne/Barbara Gordon romance at all. Considering what happens to Batgirl later in the film at the hands of the Joker, it makes sense that the filmmakers would want to create a deeper emotional tie between Bruce and Barbara.

Hamill previously said of the film's liberties in adapting the original comic, "...for you Alan Moore fundamentalists, of which I am one, it's not [a direct adaptation]...Because Alan Moore doesn't like anything that they do -- you know, 'V for Vendetta,' he didn't like 'Watchmen.' It's just, you know, he's a perfectionist, so he's going to hate 'Killing Joke.' But 'Killing Joke' is embedded in a larger story that I can tell you involves Batgirl and Batman. And, like I say, it's earned its R rating. I mean, they really did it like the book."

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Warner Bros. Animation's "Batman: The Killing Joke" will be available for Digital HD download on July 26, and arrives on Blu-ray/DVD on August 2. The film is making its World Premiere at San Diego's Comic-Con International on July 22.