HOLLYWOOD — “We usually start with some sparkling just because it’s morning,” said Andrew Harding, a founder of the Nocking Point wine club. It was a recent Monday, and Mr. Harding, 39, was in the castlelike home of his friend and co-founder, Stephen Amell, 35, the star of the television drama “Arrow.”

Mr. Harding popped the cork of a sparkling chardonnay blend, spilling some on his jeans before filling an array of wine glasses. Sunday football was recapped. A Los Angeles Dodgers game was scheduled for that afternoon. There was talk of ordering sushi, since the two would be tasting nine wines over the next few hours, but Mr. Amell balked.

“I’ve actually made a point of eating as little as possible,” he said, adjusting his baseball cap and flashing a mischievous grin.

This was a day at the office for the two men, who were selecting wines for Nocking Point, a four-year-old club that ships proprietary blends to its members in Hollywood and beyond. While celebrities selling wine is nothing new, Nocking Point has amassed a loyal following. Trading heavily on Mr. Amell’s fame and their celebrity friends, the upstart club has 4,300 members and another 6,000 on a waiting list.