Question: Steven Spielberg, is an American director, producer, and screenwriter who is considered one of the founding pioneers of the New Hollywood era, who did he co-write the unfinished film Slipstream with?
Sentence (from "Steven Spielberg"): Steven Allan Spielberg, {'1': ", '2': ", '3': 'KBE', '4': "} , {'1': ", '2': ", '3': 'OMRI', '4': "} (born December 18, 1946) is an American director, producer, and screenwriter.
Relevant evidence: Yes