The Guardian What's On supplement for the period of 19-25 July 2025, featuring Diane Morgan and Keely Hawes as The Assassin, is a collectable newspaper from the modern era in the United Kingdom. This supplement provides a snapshot of cultural events, entertainment, and news relevant to the British public during that specific time frame. As a part of The Guardian's publications, it offers readers a unique perspective on the current issues and trends shaping the nation's society.