Nothing is original. Steal from anywhere that resonates with inspiration. Devour old films, new films, music, books, paintings,
photographs, poems, dreams, random conversations. Your work (& theft ) will be authentic.
Authenticity is invaluable ; originality is non-existent. And don't bother concealing your thievery - celebrate it if you feel like it. In any case, always remember what Jean-Luc Godard said :
" It's not where you take things from it's it's where you take them to "
( Jim Jarmusch )