By Allison Watkinson TLL Reporter Marvel Studios and Kellanova have teamed up for a licensed Pop-Tarts collection to promote the upcoming film, The Fantastic Four: First Steps. The Fantastic Four pastry line-up features four Pop-Tarts Frosted varieties including Strawberry, Brown Sugar Cinnamon and S’mores, as well as the return of the brand's limited-edition Frosted Blue … [Read more...] about Marvel Studios and Kellanova Team Up for Fantastic Four Pop-Tarts