At 11.15pm, Forrest was passing through Times Square, New York City, heading for his apartment on West 51st Street during Times Square’s busiest time, theatre letting out time. Carving through the crowds, wishing he’d gone a different way, Forrest noticed a man in his thirties standing in the middle of the road.

Yup, this woman was talking on a mobile phone—in 1928—decades before they were invented.

She frowned. “I’m not crazy.”

“I’m not saying you are,” Dr. Flynn said. “But there is a problem with your memory and there are people at Pinewood who may be able to find out wht it is.”