Question: when did the movie benjamin button come out
[{'answer': 'December 25 , 2008', 'provenance': [{'wikipedia_id': '8031432', 'title': 'The Curious Case of Benjamin Button (film)', 'start_paragraph_id': 2, 'start_character': 42, 'end_paragraph_id': 2, 'end_character': 62, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '8031432', 'title': 'The Curious Case of Benjamin Button (film)', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 332, 'bleu_score': 0.866522238220184, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 16563415834269670285}, 'section': 'Section::::Abstract.'}]}]