Galileo is a 1975 historical biographical drama film directed and co-written by Joseph Losey, about the 16th- and 17th-century scientist Galileo Galilei, whose astronomical observations with the newly invented telescope led to a profound conflict with the Roman Catholic Church. The film stars an ensemble cast, led by Topol in the titular role, along with Georgia Brown, Edward Fox, John Gielgud, Margaret Leighton, Colin Blakely, Clive Revill, Michael Lonsdale, Patrick Magee and Tom Conti.