An Iranian filmmaker said the Islamic republic barred him from travelling to the London Film Festival over his support for the protest movement sparked by the death of Mahsa Amini that he called a “great moment in history”. “I was prevented by the Iranian authorities from boarding my flight to London on Friday,” Mani Haghighi said in a video message to festival-goers tweeted by the British Film Institute (BFI). “They gave me no reasonable explanation for this actually rude behaviour.” Outrage over Amini’s death on September 16, three days after she was arrested by Iran’s notorious morality pol…