Natalie Portman is NOT fan-friendly!

Natalie Portman was on her WORST behavior at an Oscar screening for her new movie "Jackie", according to a new report.

A source tells Naughty Gossip, "At a screening tonight at The Walter Reede theatre in Lincoln center, the actress was NOT interested in fan interaction. Flanked by an entourage, Natalie entered the theatre moments before the film ended and refused to sign autographs or do photos with people. In fact she didn’t even acknowledge the 3 or 4 fans waiting for her outside the lobby. She was downright rude. This follows screenings a few weeks back where she had the exact awful attitude."

Sources say Amy Adams did the same type of screenings this week and "couldn't have been sweeter!"