Friday night at Chateau Marmont seemed to be the perfect place for hooking-up! Lindsay Lohan arrived with a group of friends (including attorney Mike Heller and fashion designer Tara Subkoff)...followed soon thereafter by Stavros Niarchos, trying to look stealth with a sweater tied around his head! While Stavros was paryting with Lindsay, Orlando Bloom was hanging out in the hotel lobby with Elizabethtown co-star Kirsten Dunst (that's her with the hat). Are these two a new couple? Stavros then left with others from Lindsay's party, doing the "walk of shame" to his car at 4am!