I saw WW last night and enjoyed it, but it was definitely not a happy story.
Also, I thought a little too much time was spent on the wrong things.
HERE BE SPOILERS.
Case in point, Paradise Island. There is a really long-feeling sequence when Antiope is telling the whole Zeus/Ares story (only leaving out that really important part that it might serve Diana well to know), in voiceover, which was a waste of Robin Wright. I didn't buy this, for two reasons.
The Amazons, in this world, are apparently undying - though they can be killed in battle, if they are not injured beyond lasting long enough to get into the healing pools, they live forever. Because they have been on that island for thousands of years. It has taken Diana thousands of years to mature. Meanwhile, they have voluntarily segregated themselves from the world, and the story says that if one of the women leaves, she can never come back.
Two problems with this.
1). If no one can come back, how - just for starters - have they learned all the other world languages, including those that nobody spoke in 2000 BC? And
2). If they have lived unchanging for thousands of years, they should be living as 2000 BC Greeks would have done, in a vibrant storytelling culture* in which the great legends and myths are constantly restated and reimagined. The Zeus/Ares story, in other words, would not have been something delivered in secret by someone going against the Queen's direct order.
It would have been recounted over and over again, with great drama and ceremony. AND it should have been accompanied by an explanation for *why the hell* if standing against Ares is so important, they have put themselves in lockdown for all this time.
*because okay, maybe they spend all day training and doing the work of daily life, but they have all night every night to stay occupied, without children, because no men. They would be gathered in firelight to sing and recite.
That was kind of a big oops for me.
The other disappointment was the framing device. By showing Diana in present day, you essentially lose all of her (and the audience's) connection to the characters who are developed with some care throughout the main storyline - including Dr. Poison. "Here she is, folks, isn't she gorgeous" (which she certainly is, the part was perfectly cast) meets "Sorry, folks, not only are Aunt Antiope and the courageous American dead, so is this adorable Englishwoman and the traumatized Scot and the canny Egyptian and the practical Blackfoot, because all this happened 100 years ago."
By using the modern-day framing device, they ensured that if they want to pursue a story with Dr. Poison they have to do it as another flashback. WTF. I personally do not require a story with Dr. Poison; I thought the character on the screen was clearly insane and therefore not capable of driving a logical plot.
However, the way the climax was presented, it was obviously intended to leave the possibility open. (Note to screenwriters: we have seen stories like this a bunch of times and you are not fooling us.)
All that said, I did enjoy the movie; the performances throughout were very good; I thought the casting was as diverse as it could realistically be; Gal Gadot is a bona fide star who can really act; and given that the main story was set during World War I, it gave us just enough humor and romance to get over the unutterable tragedy of that setting.