Red Joan: Neon NZ Film Review 

Inspired by a true story it may be, but Red Joan's insistence on miring everything in flashback means sadly it squanders its best asset - Judi Dench - as nothing more than a bookend to proceedings, with glimpses throughout.

However, while this story begins in a leafy English suburb with Dench's Joan Stanley being arrested as a suspected informant who leaked top secret information, its flashbacks soon reveal another equally strong presence in the form of young Kingsman actress, Sophie Cookson.

Ripping back to Cambridge and exploring how Joan became affiliated with the disaffected communist movement, Red Joan seeks to keep questions in place about whether she is a willing participant in a crime or had been manipulated via love (fake or otherwise) in the past.

It's an interesting proposition, and while the relatively formulaic, almost TV-movie like telling of the story feels flat, the central performances are not. Its open-endedness is also its strength, with a final shot and simple facial smirk from Dench offering to throw everything up in the air that you've already seen in a kind of Keyser Soze-esque tribute.

But where Red Joan falters is in some of the film's innate ability to play it safe.

Period details are nicely rendered, and the sense of atmosphere is palpable, but what transpires lacks some of the edge that say a pulpy thriller may have helped you get to the edge-of-your-seat and leave you questioning throughout.

Likewise, the almost minimal use of Judi Dench feels criminal; even the briefest of scenes in the present day, with her son's suspicions swirling around her, hint at a frustrating promise that narratively had to take place.

However, as mentioned Cookson's turn as the young questioning intellect caught up in the cold war and its machinations gives the film a welcome human edge. Hers is a performance that anchors the film and almost makes you forget about the bookending of its sidelined mammoth talent.

All in all, Red Joan's commitment to the straight storytelling serves it fine, but with a little more flair and more uncertainty, the sense of panache in this wartime tale of love and betrayal, both personally and at a country-wide level, could have helped it into some truly sterling stuff.