The NHS-Galleri trial is looking into the use of a new blood test to see if it can help the NHS to detect cancer early when used alongside existing cancer screening. This 3minute film hears from trial participants about their motivation for taking part, as well as hearing from CAlly Palmer and Charles Swnaton about the hopes for the trial. The film was used to support trial retention by providing engaging content for participants as well as providing partners with engaging content to use to engage a wide range of stakeholder audiences.