Gal Gadot's Wonder Woman made her live action theatrical debut last year in Batman v Superman: Dawn of Justice, aiding the Man of Steel and Caped Crusader in the battle against Doomsday. At the end of that movie, Diana told Bruce Wayne that she walked away from mankind 100 years ago, but this revelation contrasted with the Wonder Woman movie earlier this year, where she was still willing to look after humanity both after World War I and in the present day. According to Gal Gadot, this is a deliberate retcon, as during the development of Wonder Woman, the creative team realized the eponymous heroine wouldn't have turned her back like that. Gadot explained:
We realized that actually, there is no way that Wonder Woman will ever give up on mankind. The reason why she left the island was because she wanted to make their life better and safer; they are her calling. So I'm giving you a very honest answer: sometimes, in a creative process, you establish something that is not necessarily the right decision, but then you can always correct it and change it. So Wonder Woman will always be there as far as she concerns for mankind.
There you have it. Contrary to what was teased about Wonder Woman's past in Batman v Superman: Dawn of Justice, Gal Gadot's comments during the Justice League press tour in Beijing (via Batmancanseeyou) lay out that in the century since Diana first stepped foot on man's world and defeated Ares following Steve Trevor's sacrifice, she's been continuing her heroic duties. It's an interesting creative shift that seemingly fractures the DC films universe continuity a little bit, but it sounds like this move was an effective way to have Gadot's version of the Themysciran princess better resemble her comic book counterpart.
Of course, with 100 years having passed between Diana's origin story in Wonder Woman to her encounter with Bruce Wayne in Batman v Superman: Dawn of Justice, there is still plenty to be revealed about Diana's past in this continuity. Justice League will reunite moviegoers with the contemporary Diana, where she'll be fighting Steppenwolf alongside Batman, Aquaman, Flash and Cyborg, but 2019's Wonder Woman 2 will reportedly be a period piece just like its predecessor, with this adventure set in the 1980s. So even though Diana hasn't technically strayed from her heroic path under this new direction, that's not to say that something couldn't happen in the sequel (where she'll supposedly be engaging Soviet Union forces) that caused her to be so jaded by the time Batman v Superman rolls around.
You can see Wonder Woman back in action when Justice League is released on November 17. For release date information on the this year's other remaining movies, browse through our 2017 premiere guide.