Little was known about his working process throughout his lifetime, but research from film historians – particularly the findings of Kevin Brownlow and David Gill that were presented in the three-part documentary Unknown Chaplin (1983) – has since revealed his unique working method.
Sedikit yang diketahui tentang proses kerjanya sepanjang masa hidupnya, namun riset dari para sejarawan film – terutama temuan-temuan dari Kevin Brownlow dan David Gill yang dipersembahkan dalam dokumenter tiga bagian Unknown Chaplin (1983) – sejak itu telah menguak metode kerjanya yang unik.