Question: who played eponine in the movie les miserables
[{'answer': 'Samantha Barks', 'provenance': [{'wikipedia_id': '33029735', 'title': 'Les Misérables (2012 film)', 'start_paragraph_id': 4, 'start_character': 360, 'end_paragraph_id': 4, 'end_character': 374, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '33029735', 'title': 'Les Misérables (2012 film)', 'start_paragraph_id': 28, 'start_character': 0, 'end_paragraph_id': 28, 'end_character': 682, 'bleu_score': 0.954595509605996, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2571848217760163439}, 'section': 'Section::::Cast.\n'}]}]