El Father Plays Himself review – behind the scenes with a raging wildman ego

Mo Scarpelli cannily captures family dynamics in this documentary about the filming of Jorge Thielen Armand's La Fortaleza, which starred his hard-drinking dad

Here's a behind-the-scenes documentary in the tradition of Burden of Dreams, Les Blank's making-of film about Werner Herzog's Fitzcarraldo. This one even has a wild-man actor, Jorge Thielen Hedderich - though he's not quite a match for Klaus Kinski in the ego stakes. Actually, he's not even an actor by trade, but he is starring in a movie about his own life directed by his son Jorge Thielen Armand. Or, at least he's meant to be. His rum-fuelled all-nighters, tantrums and fits of rage are constantly threatening to bring the production crashing down. Though when El Father - as everyone on set calls him - is in a good mood, on full-wattage, his charisma is dazzling.

This documentary is directed by Armand's partner, Mo Scarpelli. At times it feels frustratingly light on detail about the film she is observing being made: it's Armand's second feature, La Fortaleza. What we can glean is that it is the story of how El Father lived in the Amazon in the 1990s, working in illegal gold mining and drinking heavily. Scarpelli is not so interested in whether her father-in-law can be tamed - though she does show the crew sneakily watering down his run. Instead, she zeroes in on the dynamic between father and son - and she's got an uncanny instinct for knowing which of their reactions to shoot. When El Father breaks his finger, it's the son's face she films - wincing as his dad twists his own bone back into place.