NEW YORK — Jerry Seinfeld has been responsible for more movies than you think. The film, which co-stars Melissa McCarthy, Jim Gaffigan, Hugh Grant and others, is an outlandish, “Mad Men”-inspired ‘60s-set satire in which Kellogg’s and Post Cereal are engaged in a cutthroat race to “upend America’s breakfast table.” “When you see any scene of it you go, ‘What …