Question: who played sirius black in the order of the phoenix
[{'answer': 'Gary Oldman', 'provenance': [{'wikipedia_id': '670407', 'title': 'Harry Potter and the Order of the Phoenix (film)', 'start_paragraph_id': 24, 'start_character': 12, 'end_paragraph_id': 24, 'end_character': 23, 'bleu_score': 1.0, 'section': 'Section::::Cast.\n'}]}]