Ranieri had a noteworthy acting performance in the 2010 drama film "Letters to Juliet" as one of the Juliet's secretaries, the closest of Sophie, played by Amanda Seyfried. She also played the role of Assunta Goretti (the mother of Maria Goretti) in the 2003 film "Maria Goretti", an Italian television movie based on real life events of Catholic virgin-martyr and Saint, Maria Goretti. In 2014, Ranieri hosted the opening and closing nights of the 71st Venice International Film Festival in Venice, Italy.