Question: who plays james rhodes in iron man 2
[{'answer': 'Don Cheadle', 'provenance': [{'wikipedia_id': '22144721', 'title': 'Iron Man 2', 'start_paragraph_id': 1, 'start_character': 397, 'end_paragraph_id': 1, 'end_character': 408, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '22144721', 'title': 'Iron Man 2', 'start_paragraph_id': 1, 'start_character': 9, 'end_paragraph_id': 1, 'end_character': 938, 'bleu_score': 0.9294021932327681, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 8449547621843252026}, 'section': 'Section::::Abstract.'}]}]