With a messy story and confusing characters, Aïnouz's Firebrand is a disappointment to behold no matter how exquisite the film looks.

It’s a watchable piece of faux history, but the movie does not know what to do with its own heroine, content to leave her to the clutches of its villain: Henry.

Peter Bradshaw

The Guardian

Firebrand pays frequent lip service to the courage it surely required for Katherine to do her royal duties with a straight face at the same time as she cultivated such radical ideas in secret, but little about the film itself reflects the courage of her convictions.