Casglu (Gather) 2017 is a film by Ruth Jones with a soundtrack created by electronic composer Andy Wheddon. The film has been created from landscape imagery shot in Pembrokeshire combined with footage from the Holy Hiatus and Joon Dance collaborative project Gather / Casglu in April 2017 – a series of outdoor site-specific dance workshops and performances exploring place and the movement of people and animals through the Pembrokeshire landscape led by professional dancers Zosia Jo, Sally Smithson, Gareth Chambers and Louiseanne Wong. This version of the film also includes footage from Big Flock, a public and participatory event with 120 people creating a human murmuration.