(WHDH) — Filmmaker and comedian Kevin Smith is lucky to be alive after surviving a major heart attack Sunday.

Smith was set to perform two stand up shows at a theater in California.

After the first show, he cancelled the second one because he felt sick.

It turns out he had a massive “widow-maker” heart attack.

He said doctors told him one of the arteries in his heart was 100 percent blocked and if he had not come in, he would have died.

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