I've often thought though that it would be fun to start a Wonder Woman film in the ancient world - perhaps at Troy where the Amazons fought on the side of the Trojans. Open on an Amzon charge lead by mother and daughter, queen and princess of the Amazons (do the circumstances of Diana's birth really matter at all to a story?). Diana rallies the troops, fights Achilles or something fun like that, fade back to see the size of the battle and majestic Troy in the background, the battle rages into the night. The next morning you see the Amazons pack up camp and leaving after the Greeks appear to have abandoned camp - and you can see the celebrating Trojans carting the horse into the city walls in the background. The next day, the Amazons see smoke rising behind them and return to find the city razed and they are sickened by the treachery of the Greeks. Wandering the devastated city, Diana finds an exulting Greek warrior and fights him - it is an epic battle for this is Ares, god of war, glutting himself of Troy's defeat. But Athena and Artemis, horrified at the end of the war, bless the brave girl who continues to fight even after she realizes it is the god and she will surely die - bless her with extraordinary powers so that he cannot defeat her. Enraged, Ares sends a blast of godly power at her, the goddesses intervene (they're all just really pissed at each other over the Trojan War), and their combined power opens a rift in time and space sending Diana - into the future, where she lands in the middle of a city street.
With the Gods you can arrange any sort of communication you want back to her people, maybe the goddesses have set Themyscira up in a separate dimension because they feel bad that Diana has become displaced by their actions - so the Amazons have been in an isolated culture for 2000 years, but Diana hasn't.
The story is Diana's quest to get home again (though by the end she decides to stay, obviously, and you could even add the diplomat business in here if you wanted), while fighting off Ares who is pretty pissed this young woman held her own in battle with him (you can pull in the Perez stuff about Ares being a particularly powerful god due to modern wars). In the course of the story, she decides on her own to dedicate herself to fighting the forces of unjust war. This manages to ditch all the Amazonian - we have so much to teach Man's World business, and sets up what could be a fun, high adventure, fish out of water tale. It also simplifies the origin while keeping enough of it in place to be recognizable and to keep Diana as essentially the same character - she can certainly go on about how the Amazons had a philosophy of being peaceful warriors and so on and so forth. It also decouples the Amazons from being "greek", which they weren't, but let's you tap classical design as you want, but with twists, which would keep the look original.
Alas, fan-girl musings come inevitably to naught...
