Question: when was once upon a time in hollywood filmed?
Answer: Principal photography began on June 18, 2018, in Los Angeles, California, and wrapped on November 1, 2018. Reynolds died in September 2018 before filming any of his scenes; Bruce Dern was cast as George Spahn in his place. Tarantino's directive was to turn Los Angeles of 2018 into Los Angeles of 1969 without CGI.