The actor accessorized his black tuxedo with a black bow tie and a paper bag with the words "I am not famous anymore" written in black paint on it. LaBeouf, 27, has been using the catchphrase repeatedly on his Twitter account for several weeks.
The actor was the first of the cast to arrive at the red carpet premiere, and he headed in before group photos were taken at the glitzy event.
Earlier in the day, LaBeouf abruptly walked out of a press conference after responding to just a question about being in a film with so many sex scenes.
He slowly and deliberately said: "When the seagulls follow the trawler, it's because they think sardines will be thrown into the sea. Thank you very much.”
Then, he got up and left the room. The quote is from French soccer legend Eric Cantona, who said it at a press conference in 1995.
The troubled actor's bizarre behavior started Saturday night when three young men tried to snap a picture of him at the lounge at the Ritz-Carlton, only to have LaBeouf lunge towards them. Several acquaintances of LaBeouf quickly intervened and defused the situation.
Also in Berlin to promote the film are von Trier and his stars Christian Slater, Stacy Martin, Stellan Skarsgard and Uma Thurman.
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