Ian Wilson, Assistant Director of Operations for the National Trust in Dorset and Wiltshire, said: "We really hope the film brings to life the very real benefits that a tunnel could bring to the Stonehenge Landscape, for people and for wildlife.

"A full scheme has yet to be designed, but the Trust supports the Government’s proposals in principle and we are committed to engaging with Highways England and others to ensure that any scheme will be fully and carefully considered and assessed."

Public opinion has been positive, but not entirely behind the proposed 2.9km tunnel. Thousands signed a petition for an even longer tunnel, which could bypass the entire 5km-diameter archaeological site entirely.