Audio problem: Before Flash takes the baby out of the microwave, it makes a ding sound as if the timer had ended, but the microwave is unplugged and not working at all as the scorched screen proves.
Audio problem: When the world is collapsing, Dark Flash says, "I pushed you out of the chronobowl," but his mouth is not moving.
Audio problem: When Bruce chases the truck, either his voice doesn't match his mouth movements, or his mouth doesn't move at all.
Audio problem: Outside the court, Iris replies: "Yes, a date Barry", but the word "Barry" is spoken from a side angle and her jaw is not moving.
Answer: Some possible reasons gleaned from the Internet: Filmmakers wanted a different vision of Supergirl to reflect a darker, grittier personality and to show her refugee-like experience. Her dark short hair symbolizes her harsher journey from her home world. Also, it gives her a more androgynous look, reflecting both her feminine and masculine traits. Adopting a radically different look for an established character also shakes up viewers' expectations and generates more publicity and interest in the film.
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