The 48-year-old actor said he has always been in awe of the director and praised him for shaping popular culture, reported FemaleFirst.
"I got very excited and nervous. I found it hard to look him in the eye. Steven's created a lot of legendary pop culture. The canon is so huge and so awesome. I love 'Saving Private Ryan'. I love '1941'.
"I'm very, very partial to 'Poltergeist', with the girl and the television and the lovely little spirit lady. Part of the joy of Spielberg doing this film is to be able to play in this referencing of pop culture, of which he is a substantial contributor," Mendelsohn told Empire magazine.
The film hits the screens on March 30 next year.