Question: who does the voice of rodney in robots
[{'answer': 'Ewan McGregor', 'provenance': [{'wikipedia_id': '893808', 'title': 'Robots (2005 film)', 'start_paragraph_id': 1, 'start_character': 251, 'end_paragraph_id': 1, 'end_character': 264, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '893808', 'title': 'Robots (2005 film)', 'start_paragraph_id': 10, 'start_character': 0, 'end_paragraph_id': 10, 'end_character': 102, 'bleu_score': 0.616260709972958, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 10665770632371933817}, 'section': 'Section::::Cast.\n'}]}]