Question: who stars in the movie lean on me
[{'answer': 'Morgan Freeman', 'provenance': [{'wikipedia_id': '1496622', 'title': 'Lean on Me (film)', 'start_paragraph_id': 1, 'start_character': 125, 'end_paragraph_id': 1, 'end_character': 139, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Beverly Todd', 'provenance': [{'wikipedia_id': '1496622', 'title': 'Lean on Me (film)', 'start_paragraph_id': 11, 'start_character': 12, 'end_paragraph_id': 11, 'end_character': 24, 'bleu_score': 1.0, 'section': 'Section::::Cast.\n'}]}, {'answer': 'Robert Guillaume', 'provenance': [{'wikipedia_id': '1496622', 'title': 'Lean on Me (film)', 'start_paragraph_id': 4, 'start_character': 448, 'end_paragraph_id': 4, 'end_character': 464, 'bleu_score': 1.0, 'section': 'Section::::Plot.\n'}]}]