Question: who's playing aquaman in the new justice league movie
[{'answer': 'Jason Momoa', 'provenance': [{'wikipedia_id': '44120383', 'title': 'Justice League (film)', 'start_paragraph_id': 1, 'start_character': 411, 'end_paragraph_id': 1, 'end_character': 422, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '44120383', 'title': 'Justice League (film)', 'start_paragraph_id': 15, 'start_character': 12, 'end_paragraph_id': 15, 'end_character': 260, 'bleu_score': 0.56930256289333, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 8244873912575844442}, 'section': 'Section::::Cast.\n'}]}]