There’s a screen quotation late in this remarkable documentary that reads, “An outstanding athlete cannot belong totally to himself.” The words are those of Soviet ice hockey trainer Anatoly Tarasov, who's one of the presences behind this story of the sport seen through the eyes and experience of the legendary defender Vyacheslav (Slava) Fetisov. But director Gabe Polsky has made a broader film, one which touches on the uncertain journey Russia has undergone over the last three decades.

The question of the Macbeths’ dead child is one of those Shakespearean quandaries, like Hamlet’s age, Iago’s cuckolding and Beatrice and Benedick’s earlier dalliance. How much do they really matter? In this new film version of the Scottish play, it’s all about the back story. Everything – Macbeth’s disdain for death in battle, Lady Macbeth’s descent into somnambulant madness – hinges on the loss of a child.

The title of French director Lucie Borleteau’s first feature conceals a range of meanings. Fidelio is both the name of the enormous maritime freight vessel on which most of the action takes places, and a clear hint at “fidelity”, a concept with which its independent heroine Alice (Ariane Labed) negotiates throughout. If its French original, Fidelio: l’odyssée d’Alice, also suggests something else, the “Odyssey” of Alice’s journey meaning a return to the starting-point of home, then our expectations are challenged.

How kind of the boffins at NASA to announce their spectacular discovery of water on Mars this week – giving a timely, real-science boost to the release of Ridley Scott’s The Martian. In truth, the film needs no such assistance. Despite following fast in the warp drive of Gravity, Interstellar and Scott’s own Prometheus, this fabulously entertaining film doesn’t suffer either through space fatigue or by comparison.

Craig Roberts first made his mark in Richard Ayoade’s 2010 debut feature Submarine, playing a socially inept Welsh teenager. For his own debut feature, as writer, director and lead, Roberts plays – well, a socially inept Welsh teenager. Comparisons between the two films are inevitable – and possibly even intentional, too. But they’re also a bit unfair, partly because Ayoade’s film is by far the more assured of the two, but also because in Just Jim, Roberts seems to be attempting something a bit darker, and far more dream-like.

In an age when film stars take selfies at the Oscars and photobomb other celebrities, and when the bashful have little control of their image saturating the internet, it may be hard to imagine a time when an actor could be on the verge of stardom without anyone having any idea who he was – or a moment when a photographer could have the inclination or intimate access that could actually touch on something truthful.

After his pop at Berlusconi, The Caiman, and cheeky peek inside the papal selection process, We Have a Pope, beloved Italian director Nanni Moretti returns to the melancholy territory of his Palme d'Or winner The Son's Room for his sombre, predominantly subtle latest. Inspired by the death of his own mother Agata in 2010, Mia Madre is a pared-down drama, coloured by genuine grief, peppered with and enlivened by moments of farce.

I don't usually suffer from chattering teeth and attacks of vertigo while watching a movie, but as this panorama of Himalayan disaster reached its climax I began to fear that I might need paramedics and an emergency evacuation. Everest might not top the all-time charts in terms of plot development or character psychology, but as an immersive account of a horrific chain of real-life events, it reaches – I nearly said "summits" – its objectives with distressing potency.

Tangerines has a simple premise which is executed straightforwardly. Yet it proves affecting to a degree seemingly out of proportion to the proposition behind the film. A man living in a war zone finds that the conflict has, literally, come to his door. He takes in an injured survivor from each of the opposing sides and, as they come back to health, steers them to confront and accept each other’s humanity. Where there was neither, tolerance and respect are cultivated.

When a lead character is warned that “it’s easier to be scrutinised in a small town”, it’s instantly clear they are not going to take the advice, keep their head down and make sure they don’t attract attention. In South Korean director July Jung’s first full-length feature, police chief Young-nam inevitably makes her presence felt soon after her arrival from Seoul in the southern coastal region of Yeosu.