An Oscar-winning World War 2 film about Britain's historic battle against Nazi Germany that was hailed by fans a "masterpiece" is now streaming for free in the UK. Darkest Hour (2017) stars Gary Oldman as war-time UK Prime Minister Winston Churchill in the early weeks of his premiership.The biopic sees him passionately resisting calls from within the political establishment to negotiate with Adolf Hitler's genocidal regime, instead calling for Britain to stand up to the dictator. Oldman won the Best Actor Oscar for his performance as the cigar-smoking statesman. The cast also includes Kristin Scott Thomas as Churchill's wife Clementine,...