A graduate of Princeton University, Department of Art and Archaeology, Castellane worked directly under world famous archaeologist Dr. Prof. Eric Sjoquist.
Thereafter, he performed graduate work at Columbia University under Professors Meyer Schapiro and Julius Held. Then Assistant to Hans Schaefer (noted old master's art dealer) where emphasis was on such old Masters as Rubens, Tiepolo, Rembrandt, Hals, etc. Opened gallery in New York City, Castellane Gallery and became notable for having amongst the earliest exhibitions of Pop Art (William Kent indicated in Lucy Lippards book "Pop Art" as Pre 1960), Sensory Art (artist Jo Roman where objects could only be felt not seen), Op Art (artists such as Ben Cunningham etc.), Installation and Psychedelic Art (Yayoi Kusama), and one of the earliest exhibitions of Earth artist Robert Smithson.
After his work in the art world, Castellane attended law school and became an Attorney. His greatest interest though was writing creative stories and screenplays, one of his first being "Little Hippino", the popular children's book.
Another of Castellane's screenplays, the football comedy "Hail Mary!", about a losing professional football team that buys up a school of sumo wrestlers to be made into offensive linemen, won the Audience Award at the Queens World Film Festival. The film is currently in distribution on Amazon.
Castellane's film "Irrefutable Proof" was awarded the "Golden Palm Award" for Best Picture as well as Best Cinematography and Best Actress at The Beverly Hills Film Festival and has been internationally released in 2018.