Byrne’s favourite character to dress? The mysterious widow, Caroline Hubbard (Michelle Pfeiffer). “She’s a Broadway actress posing as a husband “hunter” and a tourist – and her clothes are either a reflection of where she’s just been or where she’s going next,” Byrne reveals. "When the Orient Express leaves Istanbul, she’s wearing a dress with Syrian embroidery on it. In the mountains, she’s in ski gear. And, no matter where she is, her outfits are always a little too much."