L'Opinion publique
In 1998, the Charlie Chaplin estate commissioned Brock to restore the Chaplin-composed score to "Modern Times". Brock then restored 11 more Chaplin silent feature and short scores through 2012, including "City Lights" (1931), "The Gold Rush" (1924), and "The Circus" (1928). In 2004, Brock transcribed some 13 hours of unheard Chaplin compositions from a newly discovered acetate recording of Chaplin composing on the piano. This resulted in the creation of a new score for Chaplin's feature drama "A Woman of Paris" (1923), a work that Brock has conducted in concert a number of times, including at "Cinema Ritrovato" 2005 in Bologna, the Kino Babylon in Berlin in 2011, as well as a studio recording made with Orchestra Citta Aperta in Rome and London, with whom he has also conducted a complete recording of "The Gold Rush" in 2012.