Louis Theroux has spent time filming some pretty terrible people, but in this series he gives us six softball interviews with endearing celebrities. Sometimes one feels the lack of challenge: with Judi Dench or Bear Grylls, for example, he is reverent and respectful and doesn't really expose anything unexpected. But in other places the approach works: Yungblud (not someone I knew of previously) comes across in a surprisingly sympathetic way after being given space to express himself, while it's interesting to see how Rita Ora switches between a ruthless work-mode and softer self, even though one senses there's a level of performance in both personae. Overall, it's amiable viewing, even if only occasionally insightful.