Think that this spring’s “Robin Hood” movie will be a blockbuster at the box office? Next week you will be able to put your money on it.

Cantor Futures Exchange, a subsidiary of Cantor Fitzgerald, expects to open an online futures market next month that will allow studios, institutions and moviegoers to place bets on the box-office revenue of Hollywood’s biggest releases. Last week, the company learned from regulators that customers could start putting money into their accounts on March 15.

“I’ve worked in the futures industry for a long time,” said Richard Jaycobs, the president of Cantor Exchange, who has worked with derivative markets and the cotton exchange. “And none of the products has the overall appeal that this does. This just has a tremendous potential audience.”

Betting on the success of Hollywood releases has long been a parlor game for moviegoers. In 2001, Cantor Fitzgerald bought the Web site HSX.com (for “Hollywood Stock Exchange”), where users can place bets with play money on a film’s box-office success; smart traders win little more than satisfaction. Mr. Jaycobs said that he hoped to lure a sizable portion of that site’s 200,000 active users to the real futures exchange.