Trivia: Rick Dalton's car is a 1966 Cadillac deVille. It's owned by Michael Madsen, who has a cameo in this film, and is the same car he drove in Reservoir Dogs.
Trivia: The final feature-film to feature Luke Perry, who tragically passed away a few months before its release after suffering two strokes.
Trivia: Luke Perry and Rebecca Gayheart both had small roles in this film. The two played husband and wife at one time in Beverly Hills 90210.
Trivia: There was a 4 year gap between The Revenant, Leonardo DiCaprio's previous film, and this one.
Trivia: Several pieces of the jewellery that Margot Robbie wears in this film actually belonged to Sharon Tate.
Answer: To put some context into the scene, three members of the Manson family (Tex included) have broken into Rick Dalton's house and are holding Cliff Booth at gunpoint. Cliff, who is high on drugs asks "Are you real", to which Tex replies "I'm as real as a donut, mother fucker." Tex was trying to answer Cliff's question stating whether or not he was real, but in the most intimidating way possible, and I guess donut was the word that came to mind that described how real he was.
Casual Person