Question: when did the supreme court rule that movies were a form of protected speech
[{'answer': '1938', 'provenance': [{'wikipedia_id': '31653', 'title': 'First Amendment to the United States Constitution', 'start_paragraph_id': 58, 'start_character': 712, 'end_paragraph_id': 58, 'end_character': 716, 'bleu_score': 1.0, 'section': 'Section::::Freedom of speech and of the press.:Political speech.:Anonymous speech.\n'}]}, {'provenance': [{'wikipedia_id': '31653', 'title': 'First Amendment to the United States Constitution', 'start_paragraph_id': 123, 'start_character': 0, 'end_paragraph_id': 123, 'end_character': 1594, 'bleu_score': 0.9820070546370281, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 15519757641663885127}, 'section': 'Section::::Freedom of speech and of the press.:Freedom of the press.\n'}]}]