This feature-length drama stars the great Tim Pigott-Smith, who died last month, in the role he also played on stage in the original play by Mike Bartlett (Doctor Foster).

As the title suggests, it imagines Prince Charles (Tim) is now king, and he’s triggered a constitutional crisis over a bill restricting press freedom.

The supporting cast includes Charlotte Riley as an ambitious Kate Middleton, and the dialogue is written in blank verse, which gives this meditation on the monarchy a Shakespearean feel.

There’s even light relief as Harry (Richard Goulding, who also plays him in The Windsors) discovers the joys of bowling and kebabs.