Investigative journalism meets conspiracy thriller as Alex Gibney (Going Clear, NZIFF15) goes on the trail of Stuxnet, the extraordinary computer virus that metastasised around the world before it arrived at its target, Iranian nuclear facilities, and performing its mission: exploding uranium-enrichment centrifuges.

Undeterred by muzzled officials, the indomitable Gibney shows how Stuxnet – or ‘Olympic Games’, as its architects called it – was cooked up covertly by the US and Israel, creating a new level of virus complexity and a new class of weapon. One of Gibney’s sources, dramatised as a composite individual and played by a digitally reconstituted actor (one of many striking visual effects), says the worm may never have come to public attention had it not been for a unilateral Israeli move to recalibrate Stuxnet’s code and accelerate its impact. A wider operation had to be abandoned, and Tehran retaliated in kind, attacking US institutions with malware and parading its own burgeoning ‘cyber army’.

Gibney manages not only to illuminate in plain terms how Stuxnet worked, but to also issue a powerful warning about the Pandora’s box it opens. Echoing ideas explored in his WikiLeaks documentary We Steal Secrets, Gibney argues that in the face of an emerging cyber-conflict threat, which is analogous to that of nuclear weapons many decades ago, international norms and rules of engagement must be developed outside the shadows of secrecy and denial. — Toby Manhire

“Zero Days is reminiscent of that scene in Skyfall when Q tells 007 that he can do more damage with his laptop before his morning cup of Earl Grey than Bond can do in a year.” — Nicholas Barber, BBC

The German-Jewish philosopher Hannah Arendt left her indelible imprint on 20th-century thought by coining the concept of the ‘banality of evil’ when reporting on the 1963 trial of Nazi war criminal Adolph Eichmann. This spirited documentary illuminates that often abused idea and draws a larger picture of Arendt’s often conflicted engagement with the defining phenomena of her era – and maybe ours too.

Richly illustrated with historical footage, Vita Activa offers an intimate portrait of Arendt’s life and work – both deeply informed by the aftermath of World War I, the rise of Nazi Germany and its systematic elimination of European Jews.

“Directed by Israeli documentarian Ada Ushpiz, who has degrees in philosophy and history as well as filmmaking experience, Vita Activa closely examines Arendt’s ‘active life’ with the goal of putting us inside her formative experiences, the better to reveal who she was and where her attitudes came from. There are interviews with old friends and academic experts and extensive use of filmed interviews Arendt herself gave, as well as the effective reading of excerpts from her essays and letters by actress Alison Darcy. Though the talk is smart and constant here, Vita Activa also benefits from the director’s sharp eye for effective, often rarely seen newsreel and home-movie footage.” — Kenneth Turan, LA Times

“There are moments in Vita Activa, an urgent and often startling documentary from Israeli director Ada Ushpiz, where I could feel her trying to reach across the decades and talk to us.” — Andrew O’Hehir, Salon

If you’ve not heard of Israeli choreographer Ohad Naharin, you’ll wonder how that could have been once you’ve seen what he does in this film. For dance aficionados, this is surely the most anticipated artist portrait since Wim Wenders’ Pina.

“A spectacular and celebratory investigation of a modern dancer’s creative process, this documentary tracks the four decades-long career of renowned choreographer Ohad Naharin, the artistic director of Israel’s Batsheva Dance Company. Thoughtfully and painstakingly researched, the film is packed with visually arresting archival footage from every stage of Naharin’s professional (and personal) life…

Choreographed pieces move in kinetic bursts from the rehearsal studio to the stage and, in interviews, dancers who’ve worked with him and colleagues from different periods offer insights in terms both admiring and blunt. Naharin is similarly expressive – about… the joys of physical expression, his struggles to convey his vision to those tasked with embodying it and the dance-world backdrop against which he developed his singular choreographic style and movement language, known as Gaga.

Heymann, a veteran documentarian whose filmography includes an earlier work about Naharin, skillfully constructs a portrait from these elements, methodically adding layers and sometimes revisiting previously seen footage, arming the viewer with new revelations and a more complicated understanding.” — Lynn Rapoport, San Francisco International Film Festival