Jake Kanter International TV EditorEXCLUSIVE: Nearly 6,500 film and TV workers have now signed two open letters calling for an end to systemic racism and the introduction of equal opportunities for BAME creatives at every level of the industry.The two letters have sprung up independently in recent days, fuelled by a sense of injustice over the death of George Floyd in Minneapolis, and emboldened by the Black Lives Matter movements across the world.The letters serve different purposes, but have a