Kenny Dalglish, Gerrard and Jamie Carragher got involved in the project after the filmmakers contacted Liverpool's Managing Director Ian Ayre via Paul McGrattan, a close friend of the Reds trio who also has a part in the movie.
"The film was first mentioned to me through the football club and we got excited when we heard about the script and went from there really," Gerrard told liverpoolfc.tv.
"It (acting) was difficult for me because I'm out of my comfort zone. It's not natural to me but the more I do I gain a bit more confidence. Directors help too with tips and encouragement.
"We are just so proud of that night in Istanbul. It gives a great message out to kids to never give up even if you're being beaten by a load of goals or anything that life throws at you, you can turn it round if you keep trying."