In anticipation of a family-friendly box office smash, Mattel and others have produced a lot of merchandise for the film. The porn-linking toys were singing Glinda and Elphaba dolls. Retailers such as Target and Walmart have already delisted the toy from their online databases, but pictures of them still exist on eBay.

"We deeply regret this unfortunate error and are taking immediate action to remedy this. Parents are advised that the misprinted, incorrect website is not appropriate for children," the company said in a statement.

Mattel has some wicked problems after a packaging error occurred with the upcoming movie's collectible dolls. "Wicked" dolls manufactured by Mattel misprinted the promotional movie website wickedmovie.

Mattel has apologized after the boxes for its new "Wicked" movie dolls included a link to a pornographic website.

Retailers have pulled Mattel's "Wicked" dolls. Resellers quickly listed the toys featuring the URL misprint on eBay, seeking hundreds of dollars.