By Hugo Greenhalgh March 10 (Thomson Reuters Foundation) - Germany must confront an often-overlooked homophobic chapter of its post-war history, says the star of an Oscar-shortlisted film that tells the story of gay men who were sent back to prison after being liberated from Nazi concentration camps. Gay sex was illegal until the late 1960s under Paragraph 175 of the German penal code, and many gay and bisexual men taken from Nazi camps at the end of World War Two were forced to serve out the rest of their sentences for same-sex relations in jail.