Absolute trash.

Rating: 2/10 (27 June 2017)

This movie is terrible. Not the worst movie I've seen by DC, that's Suicide Squad, which is why I'm giving a 2 instead of a 1, but still terrible.
There are plot holes and stupid decisions galore in this. The titular Wonder Woman is intended to come off as an intelligent but inexperienced, emotional character, but instead comes off as a self-righteous brat who knows only what the plot needs her to know. Her and the rest of the Amazons have a fluent understanding of all languages (with a random assortment of accents) but are apparently willfully ignorant of the cultures, countries, events and inventions of the world.
Princess Diana in particular is a holier-than-thou, we need to save everyone character, in the last leg of a war she didn't participate in. She judges everyone as cowardly or inhumane, but doesn't stop to listen what sacrifices had to be made or that suffering had been going on nonstop. She walks out to a battlefield and crosses a deadly No Man's Land with ease, ignoring that soldiers have died there for over a year.
It's easy to be judgmental when you're literally a superhero who can do anything, it's degrading to act that way to normal humans who die if they follow. Later she has a "touching" minute where the people she saved are killed, before running off and never addressing that point again or learning any lesson.
On the point of empty plot points, I suppose her family and friends are all horribly killed by the German destroyer that parked itself by their island, which is never addressed again.
The brat character kills Ares, whose entire (forced) backstory is a gross but acceptable deviation away from real mythology, saves the day, ends the war. No real mention or honest tribute to the millions who died to get there, just one mythical brat and her goodwill/badly written love powers for a character who sacrifices himself needlessly.
Go save yourself time and watch Sailor Moon. It's got more depth than this movie.