Trivia

Lambert knew Natalie Wood as both were intimates of director Randy Suhr. In the early 1960s, he wrote a novel about a Hollywood child star in the 1930s, Inside Daisy Clover (1965). After reading the book, Wood telephoned Lambert and said, "I'd kill for that part." He assured her she was his first choice for the movie, for which he was writing the screenplay. She got the part and Ruth Gordon got her first Oscar nomination as an actress for portraying Daisy's mother.

Was a very close friend with director Lindsay Anderson.