The Guernsey Literary and Potato Peel Pie Society, which has taken £5 million at the box office, caused a 130% increase in Visitguernsey.com’s traffic in the five days following its release.

Among key tour operator partners, C. I. Travel Group reported a 55% increase in bookings in April compared with 2017. Meanwhile, Opodo confirmed Guernsey as its sixth biggest growth destination for the early May bank holiday weekend, with a 155% year-on-year increase in passenger growth, putting it behind destinations including Boston, Chicago and New York.

The film’s release saw VisitGuernsey secure an extra £330,000 to maximise the interest.

Beverley Scarr, Premier Holidays’ short-haul general manager, said: “Promotion around the film has led to an upturn in sales for us in April and we expect this to continue into May.

“Feedback from our key agents has been very positive; those who have seen the film really enjoyed it as it gave them an insight into what Guernsey was like during the Second World War. They have taken advantage of our marketing campaign and special offers to inspire clients to visit the island, generating an increase in Guernsey bookings.”