Question: who played muhammad ali in the movie ali
[{'answer': 'Will Smith', 'provenance': [{'wikipedia_id': '171626', 'title': 'Ali (film)', 'start_paragraph_id': 1, 'start_character': 242, 'end_paragraph_id': 1, 'end_character': 252, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '171626', 'title': 'Ali (film)', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 712, 'bleu_score': 0.911038652365955, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 15607477468267958501}, 'section': 'Section::::Abstract.'}]}]