Michael Caine is looking back at the difficulty of doing a press tour for 2008's The Dark Knight following Heath Ledger's death. In his new memoir, Don't Look Back, You'll Trip Over: My Guide to Life,

Ledger's method acting in The Dark Knight resulted in a breathtaking performance, although it seemed to have taken a toll on his mental health. In his new book Don't Look Back, You'll Trip Over: My Guide to Life (via People ), Caine spoke about his relationship with the late actor. He mentioned his temperament, offering:

Michael Caine writes in his new memoir, “Don't Look Back, You'll Trip Over: My Guide to Life,” that he was actually “terrified” of Heath Ledger on the set of Christopher Nolan’s “The Dark Knight” (via NME).