The Smurfs are returning to Gourmet Trading Co. blueberry package labeling in advance of the debut of a movie featuring the blue cartoon characters.

“The Smurfs 2” is scheduled to hit theaters July 31. As part of a June 15 to Sept. 30 promotion, Los Angeles-based Gourmet Trading plans a sweepstakes for a four-person trip to Hollywood, Calif., and the company’s blueberry farm in Bakersfield, Calif.

Entry information and rules will go online starting June 10 . Sweepstakes information will also appear on the blueberry package labels. They’ll appear on the 6-ounce, 11-ounce and 18-ounce packages with six different Smurfs characters until the end of August.

“When blueberries become Smurfberries, packaging becomes a collectible as consumers seek out a complete set,” marketing director Julia Inestroza said in a news release.

Gourmet Trading sources blueberries in California, Oregon and British Columbia.