The Pre-Crisis version of the invisible plane was a necessity because before Crisis on Infinite Earths rewrote Wonder Woman's history – along with the histories of many other heroes – Wonder Woman could not fly. She grew increasingly powerful during and after the Silver Age of Comic Books, acquiring the power to ride wind currents and imitate flight over short distances. This had limitations, however; for example, if there was no wind and the air was completely still she would be trapped on the ground or if dropped from a distance that she would helplessly fall out of control to the ground. Though this meant that she would rely on the invisible plane less frequently, she always had need of it.
Additional music featured in the film are: "Another Little Drink Wouldn't Do Us Any Harm" by Clifford Grey and Nat Ayer and performed by Edgar Trevor and Cecil Cooper; "Molly O'Morgan" written by Fred Godfrey and Will Letters and performed by Ella Retford; "It's a Long Way to Tipperary" written by Jack Judge and Harry Williams; "Sous les ponts de Paris" written by Jean Rodor and Vincent Scotto and performed by Lucienne Delyle; "I'll Walk Beside You" written by Edward Lockton and Alan Murray and performed by Ewen Bremner; "Green Grow the Rushes, O" written by Robert Burns and performed by Ewen Bremner; and "Schatzwalzer Op. 4" written by Johann Strauss II and performed by the Berlin String Quartet.
The events of Crisis on Infinite Earths greatly changed and altered the history of the DC Universe. Wonder Woman's history and origin were considerably revamped by the event. Wonder Woman was now an emissary and ambassador from Themyscira (the new name for Paradise Island) to Patriarch's World, charged with the mission of bringing peace to the outside world. Various deities and concepts from Greek mythology were blended and incorporated into Wonder Woman's stories and origin. Diana was formed out of clay of the shores of Themyscira by Hippolyta, who wished for a child; the clay figure was then brought to life by the Greek deities. The Gods then blessed and granted her unique powers and abilities – beauty from Aphrodite, strength from Demeter, wisdom from Athena, speed and flight from Hermes, Eyes of the Hunter and unity with beasts from Artemis and sisterhood with fire and the ability to discern the truth from Hestia. Due to the reboot, Diana's operating methods were made distinctive from Superman and Batman's with her willingness to use deadly force when she judges it necessary. In addition, her previous history and her marriage to Steve Trevor were erased. Trevor was introduced as a man much older than Diana who would later on marry Etta Candy. Instead, Perez created Julia and Vanessa Kapatelis, a Greek-American scholar and her teenage daughter whom Diana would live with when she was in Man's world and would be major supporting characters in the series for years.