He frequently collaborated with assistants in order to produce copies of his work, using the innovative silkscreen process.<ref>https://www.warhol.org/andy-warhols-life/</ref> He was also a notable experimental film-maker, directing such films as ''Trash'', ''Heat'', ''Andy Warhol's Frankenstein'' and ''Andy Warhol's Dracula''. | He frequently collaborated with assistants in order to produce copies of his work, using the innovative silkscreen process.<ref>https://www.warhol.org/andy-warhols-life/</ref> He was also a notable experimental film-maker, directing such films as ''Trash'', ''Heat'', ''Andy Warhol's Frankenstein'' and ''Andy Warhol's Dracula''. |