The Lohans were ousted from last night’s New York City premiere of The Sisterhood of the Traveling Pants 2. Celebrity spies tell gossip columnist Marc Malkin that Dina and Ali Lohan, stars of the E! reality series Living Lohan, were tossed from the red carpet movie afterparty when the family matriarch flipped into full Bitch Mode on a event staffer who “politely” asked her group to move to another table.

A studio staffer politely asked her to change tables, but “Dina “went apeshit…It so wasn’t cool.” So not cool that “Dina was quietly removed” from the rooftop soiree…

“Dina was so awful,” the insider says.

Dina denies she the Lohan party was kicked out of the event, explaining to Marc in an email on Wednesday that she decided to take Ali and another young guest home early after a studio staffer began raising his voice.

“He made the girls uncomfortable,” Dina says. “At that point, the girls wanted to leave.”

But my party source insists, the studio folks “couldn’t have been nicer.”