Former Chief Judge Alex Kozinski, who retired from the bench last year amid allegations of sexual harassment, is making what appears to be his first trip back to the Ninth Circuit as a practitioner.

Kozinski appeared on a Ninth Circuit brief alongside lawyers from Toberoff & Associates filed Dec. 10 on behalf of the son of Pulitzer Prize-winning author Paul Zindel, who claims the filmmakers behind the Academy Award-winning film “The Shape of Water” ripped off multiple copyrighted elements of his father’s play “Let Me Hear You Whisper.”