In 2009 Iranian-American filmmaker, theatre artist, educator, and scholar, Mahmood Karimi-Hakak spent a year in Israel and Palestine, on a mission to create a theatrical collaboration with participants on both sides of the decades-old conflict in that region. What he discovered was a 760 km (472 mi) concrete Wall that currently makes any such artistic collaboration meaningless, if not impossible. Karimi-Hakak had theatre artists from each side, Palestine and Israel, express their thoughts and feelings towards The Wall, its effect on their creative work and their day-to-day life. They are also asked to imagine The Wall as transparent, hence The Glass Wall, and comment on what they see on the other side. With candid interviews of theatre artists, enhanced by footage of their theatre productions, this film takes us to the heart of one of the most impassioned cultural divides in our time.