Question: who starred in the movie arsenic and old lace
[{'answer': 'Cary Grant', 'provenance': [{'wikipedia_id': '787704', 'title': 'Arsenic and Old Lace (film)', 'start_paragraph_id': 1, 'start_character': 91, 'end_paragraph_id': 1, 'end_character': 101, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '787704', 'title': 'Arsenic and Old Lace (film)', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 1002, 'bleu_score': 0.9644197302774041, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 1224966034434794167}, 'section': 'Section::::Abstract.'}]}]