At the age of 23, Rassam founded the production company "Chapter 2".[5] His first credit as producer was the film Judas, directed by Nicolas Bury and Jérôme Fansten in 2006.[6][3] In 2014, "Chapter 2" merged with Alexis Vonarb's Onyx Films and Aton Soumache's Method Animation to form "ON Entertainment".[8][9][10] Method Animation is the parent company, with Soumache as CEO and Mediawan, which founded by Xavier Niel, Matthieu Pigasse, and Pierre-Antoine Capton as ultimate owner since 2018.[11]