Michael Caine is giving his unfiltered opinion on Heath Ledger's portrayal of the Joker. In his memoir, Don’t Look Back, You’ll Trip Over: My Guide to Life, Caine reflects on his experience of working with the late actor on the set of Christopher Nolan's 2008 film The Dark Knight—and he's not afraid to admit that he was "terrified" of Ledger's transformation into the infamous Batman villain.

In his new memoir, Don’t Look Back, You’ll Trip Over: My Guide to Life, the veteran actor opened up about working with his late co-star on the Christopher Nolan-directed film and the grief he experienced after his death in January 2008 at 28 years old.

Michael Caine has opened up about a moment that 'still makes him sad to think about' in the aftermath of Heath Ledger's death in 2008. The late actor made us all root for the bad guys in movies after his iconic performance as the Joker in The Dark Knight.