“I’ve been told by my doctors I cannot fly, and I would have to fly five hours to get there,” Dreyfuss shared in an Instagram video, while wearing a “Jaws” blanket to cover himself.

Richard Dreyfuss fights viral bronchitis as fans gear up to celebrate the 50th anniversary of 'Jaws.'

"I'm terribly sorry because I had planned to be there and had been looking forward to it. But I'm unable to do so."