In the 1990s, video arcades were going through a revolution. The games were moving away from the family friendly abstractions of Pacman or Space Invaders and embracing an aesthetic that was grittier, more realistic and more violent.

And business was booming: the top games were making more than a billion dollars globally, outshining even the biggest movies of the time.

In the Drawing Room, Joshua Tsui talks about his new documentary, Insert Coin, which charts the rise of one of the industry's biggest players: Midway Games.