Leonardo DiCaprio attends the Once Upon A Time In Hollywood press conference in Rome on August 3 .He talks about his character(Rick Dalton) and the whole concept of the movie and the fact that he started googling all the cultural things that happened in 1969 and all the films that came out in 1969 to portray the character.
He also has some advice for young actors:” Every young actor who speaks to me about wanting to be part of this industry, first thing that I tell them is, Go out and watch as many films as you possibly can.”