Kevin Smith

Kevin Smith was kicked off a Southwest Airlines flight from Oakland to Burbank, Calif., Saturday because he was deemed too fat for the seats, he wrote in a barrage of angry Twitter posts.

The Clerks and Jay and Silent Bob Strike Back director said he was booted by the captain after he was seated because he was considered a "safety risk."

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"I know I'm fat, but was Captain Leysath really justified in throwing me off a flight for which I was already seated?" he wrote, maintaining, "I broke no regulation, offered no 'safety risk' (what, was I gonna roll on a fellow passenger?).

"Thank God I don't embarrass easily (bless you, Jersey Girl training)," he continued. "But I don't sulk off either ..." So he promised more tweets zinging the airline in the coming days for telling him "I'm too wide for the sky."

Smith said he refused a $100 voucher offered by Southwest and eventually got on another Southwest flight. He then tweeted a photo of himself on the plane with his cheeks puffed out, writing, "Look how fat I am on your plane! Quick! Throw me off!"

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After landing, Smith, 39, wrote, "Don't worry: wall of the plane was opened & I was airlifted out while Richard Simmons supervised."

Southwest apologized to Smith on Twitter and also issued a statement on its blog, under the title, "Not So Silent Bob." The airline said Smith had purchased two tickets, as he has been known to do, but when Smith decided to fly earlier on standby, only one seat was available.