Question: who plays celia in nanny mcphee and the big bang
[{'answer': 'Rosie Taylor - Ritson'}, {'provenance': [{'wikipedia_id': '23380332', 'title': 'Nanny McPhee and the Big Bang', 'start_paragraph_id': 17, 'start_character': 0, 'end_paragraph_id': 17, 'end_character': 101, 'bleu_score': 0.716035054694792, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7372147652606648953}, 'section': 'Section::::Cast.\n'}]}]