Question: what are the 5 highest grossing movies of all time
[{'answer': 'Avatar', 'provenance': [{'wikipedia_id': '59892', 'title': 'List of highest-grossing films', 'start_paragraph_id': 2, 'start_character': 943, 'end_paragraph_id': 2, 'end_character': 949, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Titanic', 'provenance': [{'wikipedia_id': '59892', 'title': 'List of highest-grossing films', 'start_paragraph_id': 5, 'start_character': 423, 'end_paragraph_id': 5, 'end_character': 430, 'bleu_score': 1.0, 'section': 'Section::::Highest-grossing films.\n'}]}, {'answer': 'Jurassic World'}, {'answer': 'The Avengers', 'provenance': [{'wikipedia_id': '59892', 'title': 'List of highest-grossing films', 'start_paragraph_id': 2, 'start_character': 466, 'end_paragraph_id': 2, 'end_character': 479, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Star Wars : The Force Awakens'}]