Question: how old is barry allen in the justice league movie?
Answer: One such detail was Barry Allen's student ID card at Central City University. On the ID card, we can see that Barry Allen was born on September 30, 1992, making him 23-years-old at the moment, 25-years-old by the time of Justice League's November 2017 release. Justice League is set for release on November 17, 2017.