When a congressman is abducted from his beachfront home in 1970s Rio, his wife and children are left reeling – for decades – in Walter Salles’s Oscar-nominated drama starring an extraordinary Fernanda Torres

Sometimes, the course of a life changes suddenly and emphatically with an event so final and unequivocal that it shifts the very world on its axis. On other occasions that change, or at least the understanding of that change, comes gradually, with the enormity of the situation obscured by the natural human propensity to hope for a happy outcome. For Eunice Paiva – the phenomenal Fernanda Torres – in Brazilian director Walter Salles’s superb, factually based Portuguese-language drama I’m Still Here, both are true.

When we first meet Eunice, life with her husband, Rubens (Selton Mello), a former congressman and civil engineer, and their five children in a beachfront house in 1970 Rio de Janeiro, is full of friends and laughter; books and art; cigars, whisky and celebration. The flexing muscle of Brazil’s military dictatorship is background noise – the helicopter blades carving up the sky as the kids play beach volleyball; the rumble of a convoy of armoured vehicles on the seafront – that can be tuned out. It feels removed from the liberal intellectual social whirl of the Paiva household.