Watch Matti and Sami and the Three Biggest Mistakes in the Universe (2018) : Full Movie Online Free Matti is 11 years old and dreams of a family vacation in his father’s native country, Finland. He manages to get what he wants by telling a whopping lie. But once they get there, Matti, his younger brother Sami and his parents find themselves without a place to stay, no money and no car in the middle of Finnish wilderness. Only a miracle can save them – or Uncle Jussi, who has been struggling to compete with Matti’s father his whole life. This movie based on Salah Naoura’s award-winning children book offers entertainment for people of all ages.