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.

Looking back on Christopher Nolan's monumental Batman film for his memoir, Don't Look Back, You'll Trip Over: My Guide to Life, Caine recounted Ledger's aura. "The smeared makeup, the weird hair, the strange voice. It was chilling," he says, per NME. "Absolutely floored me the first time I saw him in action – I was terrified."

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).