Film critic John Maguire  joined Mario this morning to review the actors who have played the iconic role of "The Joker" over the years as it was released to cinemas this weekend.

From the golden oldie days of Cesar Romero in the camp and clownish portrayal of The Joker in the classic 1960s TV show Batman all the way through to the phenomenal and unpredictable performance by Heath Ledger and now Joaquin Phoeinix, it is a startling and intriguing role to capture on screen.

John gives us the rundown of the performances and his thoughts on the latest portrayal by Joaquin Phoienix.

To listen to the full chat hit the Listen button at the top of this page.