Leonardo DiCaprio has had experience working with director, and he gave the young star some friendly advice when they were on set of Quentin Tarantino's Once Upon A Time In Hollywood. 

Helpful insight: Leonardo DiCaprio has worked with Baz Luhrmann a few times, and he gave advice to Austin Butler in preparation for his new film, Elvis 

In an interview with Entertainment Weekly, Austin retold the advice the Titanic star gave to him

Kind heart: The Romeo And Juliet actor had worked with the director twice before, and was able to help the Elvis star prepare for his role 

Amazing duo: Butler, 30, and Luhrmann, worked closely together for two years straight to make an incredible Elvis biopic 

However, Leonardo's advice wasn't the only piece of helpful insight that Austin received during his journey of portraying Elvis. 

Talented mentor: The Forrest Gump actor gave Butler advice to the Elvis star when he saw Butler was becoming all too consumed with the character