She is seen fighting the Metal Men at the beggining of the Movie. Wonder Woman is in charge of the organization of the Intergalactic Games. She is under pressure because she wants to impress the Ambassador Bek so she can get an invitation to spent a week with them, which she think will help in her preparation to be a Queen in the future. During the competition, she races agains Lashina and Bleez in the "Flying with obstacles" game. She wins despite Lashina constant cheating.
Phobos returned alongside his sister Eris in alliance with Circe. Circe had amassed great power by bringing gods of various pantheons together. Among them were the Roman gods, who challenged the Olympians for their domain. It took much strength for Zeus to summon Hermes and Diana to New Olympus, where the gods had been trapped. Earth's heroes were able to turn the tide against Circe, but three gods died: Circe killed Hermes; Harmonia was killed by her sister Eris; and Eris herself was slain by Son of Vulcan. Zeus and the Olympians decided then to follow the call of Cronus and the Titans to help guide other worlds in the universe. New Olympus was left to the Roman gods.
^ Daniels, Les (1995). "The Amazon Redeemed Wonder Woman Returns to Her Roots". DC Comics: Sixty Years of the World's Favorite Comic Book Heroes. New York, New York: Bulfinch Press. p. 194. ISBN 0821220764. Creator William Moulton Marston had mixed Roman gods in with the Greek, but Pérez kept things straight even when it involved using a less familiar name like 'Ares' instead of 'Mars'. The new version also jettisoned the weird technology anachronistically present on the original Paradise Island.
Magic (Formerly): When she was a child, Diana was marked by the goddess Hecate and bestowed with a fraction of her magical ability. This power lay dormant until it was activated by the Upside-Down Man. Zatanna remarked that Wonder Woman's magical power was unlike anything she had ever seen or felt, and Diana possessed at least enough power to cast out the Upside-Down Man, an immensely powerful demon, from the world. After the Justice League Dark defeated Hecate, the Witchmarked's power was taken from them and absorbed by Circe.
Born among the legendary Amazons of Greek myth Princess Diana has a fierce warrior's heart while being an emissary of peace. On a hidden island paradise she was trained in the arts of combat as well as justice and equality. Diana ventured into the 'world of men' armed with magical gifts from the Gods and a message for all men and women - that all the world can be united through compassion strength and understanding.
^ Greenberger p. 175: "Journalist and feminist Gloria Steinem...was tapped in 1970 to write the introduction to Wonder Woman, a hardcover collection of older stories. Steinem later went on to edit Ms. Magazine, with the first issue published in 1972, featuring the Amazon Princess on its cover. In both publications, the heroine's powerless condition during the 1970s was pilloried. A feminist backlash began to grow, demanding that Wonder Woman regain the powers and costume that put her on a par with the Man of Steel."