The Clerks director shared the news in a tweet early Monday, along with a selfie including tubes and a hospital gown, per the Hollywood Reporter. "After the first show this evening, I had a massive heart attack," he said. "The Doctor who saved my life told me I had 100% blockage of my LAD artery (aka 'the Widow-Maker'). If I hadn't canceled show 2 to go to the hospital, I would've died tonight. But for now, I'm still above ground!" Deadline reports that Smith had been shooting a new stand-up special, Kevin Smith Live!, in Glendale, Calif., Sunday night, with one show scheduled at 6pm and the second at 9pm.