Conversation so far:
What is significant about James Cameron's early career?
James Cameron's directing career began in 1978. After borrowing money from a consortium of dentists, he learnt to direct, write and produce his first short film, Xenogenesis (1978) with a friend.

Question: What else did he do?
Self-contained rewrite: What else did James Cameron do in his early career besides directing, writing, and producing his first short film Xenogenesis (1978) with a friend?