Question: who play james brown in get on up
[{'answer': 'Chadwick Aaron Boseman', 'provenance': [{'wikipedia_id': '26866372', 'title': 'Chadwick Boseman', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 22, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]