Mondelez is suing Aldi, alleging the supermarket chain ‘blatantly copies’ its packaging. The side-by-side photos are wild

Snack food maker Mondelez International is suing the Aldi supermarket chain, alleging the packaging for Aldi’s store-brand cookies and crackers “blatantly copies” Mondelez products like Chips Ahoy, Wheat Thins and Oreos.

In a federal lawsuit filed Tuesday in Illinois, Chicago-based Mondelez said Aldi’s packaging was “likely to deceive and confuse customers” and threatened to irreparably harm Mondelez and its brands. The company is seeking monetary damages and a court order that would...