Sam Taylor - Wood struggled with the enormity of tackling a forthcoming movie about John Lennon’s childhood, insisting the challenge "terrified" her.
Nowhere Boy, which stars Aaron Johnson and Kristin Scott Thomas, tells the story of Lennon's formative years in Liverpool, England.
But Taylor-Wood admits the film project was hard for her - she regularly suffered panic attacks on set.
She says, "Taking on someone as iconic as Lennon - that was quite terrifying at times. There were moments where I got overwhelmed and had to sit down and take a few breaths rather than panic and run - but it was so exhilarating and fun to take on that challenge."
Imagine John Lennon’s childhood… Liverpool 1955: a smart and troubled fifteen year-old is hungry for experience. In a family full of secrets, two incredible women clash over John.
Mimi, the buttoned-up aunt who raised him, and Julia, the prodigal mother. Yearning for a normal family, John escapes into rock n’ roll. His fledgling genius finds a kindred spirit in the teenage Paul McCartney.
Just as John begins his new life, tragedy strikes. But a resilient young man finds his voice, and an icon explodes into the world.
Nowhere Boy is released 25th December.