He's mostly known for working in comedy projects, and for being the recurring composer in films starring Adam Sandler, before being replaced by Rupert Gregson-Williams. Castellucci appeared on screen as a band member (the guitarist) in "The Wedding Singer" and his last name was used for minor characters in both "The Wedding Singer" and "Big Daddy".
Castellucci is primarily recognized for his contributions to comedic films, particularly those starring Adam Sandler, before being succeeded by Rupert Gregson-Williams. He made a brief appearance as a guitarist in "The Wedding Singer" and had his surname used for minor roles in both "The Wedding Singer" and "Big Daddy".