Question: who starred in the last king of scotland
[{'answer': 'Forest Whitaker', 'provenance': [{'wikipedia_id': '2528212', 'title': 'The Last King of Scotland (film)', 'start_paragraph_id': 2, 'start_character': 176, 'end_paragraph_id': 2, 'end_character': 191, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'James McAvoy', 'provenance': [{'wikipedia_id': '2528212', 'title': 'The Last King of Scotland (film)', 'start_paragraph_id': 2, 'start_character': 57, 'end_paragraph_id': 2, 'end_character': 69, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Kerry Washington', 'provenance': [{'wikipedia_id': '2528212', 'title': 'The Last King of Scotland (film)', 'start_paragraph_id': 17, 'start_character': 12, 'end_paragraph_id': 17, 'end_character': 28, 'bleu_score': 1.0, 'section': 'Section::::Cast.\n'}]}, {'answer': 'Simon McBurney', 'provenance': [{'wikipedia_id': '2528212', 'title': 'The Last King of Scotland (film)', 'start_paragraph_id': 19, 'start_character': 12, 'end_paragraph_id': 19, 'end_character': 26, 'bleu_score': 1.0, 'section': 'Section::::Cast.\n'}]}, {'answer': 'Gillian Anderson', 'provenance': [{'wikipedia_id': '2528212', 'title': 'The Last King of Scotland (film)', 'start_paragraph_id': 18, 'start_character': 12, 'end_paragraph_id': 18, 'end_character': 28, 'bleu_score': 1.0, 'section': 'Section::::Cast.\n'}]}]