Location manager Dee Gregson said they picked the West Somerset Railway while looking for a rural and pretty place to shoot.
She said: “We did a lot of research about the railway – it was quite a big project.
“They wanted the train to stop somewhere quite scenic.. It goes along Blue Anchor bay and we were able to stop it there and see the beach and the countryside, and it was all very beautiful.”
While filming on the trains, cast and crew also made use of local facilities, including staying at the Luttrell Arms Hotel in Dunster.
Owner Anne Way said the stars were “very lovely” when they stayed at the 15th century hotel, noting Bonham-Carter was specifically interested in its interiors.
Way said it was exciting for the area to be involved in filming, adding West Somerset was a “well-kept secret”.
