Question: who starred in the movie whatever happened to baby jane
[{'answer': 'Bette Davis', 'provenance': [{'wikipedia_id': '1917925', 'title': 'What Ever Happened to Baby Jane? (film)', 'start_paragraph_id': 1, 'start_character': 140, 'end_paragraph_id': 1, 'end_character': 151, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Joan Crawford', 'provenance': [{'wikipedia_id': '1917925', 'title': 'What Ever Happened to Baby Jane? (film)', 'start_paragraph_id': 1, 'start_character': 156, 'end_paragraph_id': 1, 'end_character': 169, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Victor Buono', 'provenance': [{'wikipedia_id': '1917925', 'title': 'What Ever Happened to Baby Jane? (film)', 'start_paragraph_id': 7, 'start_character': 53, 'end_paragraph_id': 7, 'end_character': 65, 'bleu_score': 1.0, 'section': 'Section::::Plot.\n'}]}]