Silent Bob is silent no more. For the past three days, American director Kevin Smith has unleashed a torrent of angry Twitter posts aimed at Southwest Air, after he was kicked from a flight for being too "fat."

A pilot had Smith ejected from the plane Saturday, claiming he did not fit comfortably in his seat.

Smith immediately vented his frustration on his Twitter page at @ThatKevinSmith, saying, "I'm way fat, but I'm not there just yet."

"So, @SouthwestAir, go f*** yourself," he added. "I broke no regulation, offered no "safety risk" (what, was I gonna roll on a fellow passenger?)."

After countless online comments from Smith and displeased fans, Southwest issued an apology on its website and its own Twitter feed.

"We are sincerely sorry for your travel experience on Southwest Airlines," the statement said.

Southwest claimed its "Customer of Size" policy requires that travellers must be able to fit safely and comfortably in one seat or make other arrangements.

But, Smith said he was still able to put both armrests down and buckle his seat. He also said Southwest Air only apologized to him -- and gave him a $100 voucher -- because of his celebrity status.

More frustration came Sunday when Southwest Air claimed Smith regularly bought two seats.

In a blog post, the airliner wrote: "Mr. Smith originally purchased two Southwest seats on a flight from Oakland to Burbank -- as he's been known to do when traveling on Southwest. He decided to change his plans and board an earlier flight to Burbank, which technically means flying standby" -- and that meant he could only have one seats.

On Monday, Smith said it was rare for him to buy two seats.

"But look how easily misinformation is spread," he wrote on Twitter. "I've read that "usually 2 tickets" bull**** EVERYWHERE today. Thanks again, @SouthwestAir!"

Smith is the director of "Clerks" and "Chasing Amy." His latest film, "Cop Out," will hit theatres Feb. 26.