Question: who played the role of fallon in prestige
[{'answer': 'Christian Bale', 'provenance': [{'wikipedia_id': '2809621', 'title': 'The Prestige (film)', 'start_paragraph_id': 2, 'start_character': 46, 'end_paragraph_id': 2, 'end_character': 60, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '2809621', 'title': 'The Prestige (film)', 'start_paragraph_id': 15, 'start_character': 0, 'end_paragraph_id': 15, 'end_character': 550, 'bleu_score': 0.75921311887714, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 73570596120015472}, 'section': 'Section::::Cast.\n'}]}]