Jerry Seinfeld’s Unfrosted: the Pop Tart Story, a movie about the invention of the legendary toaster pastry, premieres on Netflix on May 3rd, and that’s a shame. If there was ever a movie made for a 4/20 release, this is it.

The movie, which Seinfeld directed and stars in, takes the creation of the sweet treat, here a battle between cereal rivals Kellogg’s (which Seinfeld represents), and Post, and blows it so far out of proportion that it looks like the USSR vs US race to the moon tale writ small – small enough to fit in a toaster.

Seinfeld plays Bob Cabana, a product developer at Kellogg’s, and Melissa McCarthy plays Donna Stankowski, who works with Cabana to beat Post Cereal company to the Pop Tart punch. Jim Gaffigan plays Edsel Kellogg III, and Amy Schumer plays Marjorie Post, and the two heads of their eponymous companies are bitter rivals.

The cast also includes Hugh Grant as Thurls Ravenscroft, the voice of Tony the Tiger, played here as a frustrated actor forced to voice a cereal mascot to keep the lights on, Bill Burr as John F. Kennedy, there just in case the Space Race metaphor is lost on anyone, Andy Daly as the Quaker Oats man, and James Marsden as Jack Lalanne. Iconic characters like Snap, Crackle and Pop and Chef Boyardee also figure into the story.

Christian Slater, Tony Hale, Daniel Levy, James Marsden, Cedric the Entertainer, Jack McBrayer, Thomas Lennon, Bobby Moynihan, Adrian Martinez, Sarah Cooper, Jon Hamm, Dean Norris and Fred Armisen are but a few of the expansive cast of familiar faces.

In an article posted on Netflix’s Tudum site, Seinfeld, who also co-wrote the movie, said the top-notch casting was all down to Hugh Grant. “I remember that we had nobody for a long time. And then Hugh Grant called and said he heard about the movie, and he wanted to be Tony the Tiger. Then, the next thing I knew, everybody was in it, and it was incredible.” So remember, if you’re ever casting a movie: Try to get Hugh Grant signed on as Tony the Tiger first.”

The trailer makes the movie seem like a spoof, and a very fun one at that, but according to Seinfeld, there’s a grain of truth in the tale he tells.

“This really did happen in Battle Creek, Michigan, where Kellogg’s and Post were located, and they did compete to come up with this product,” Seinfeld said. “But the rest of it is complete lunacy. ” He added, “we’re going to tell you a story, but if we want to do something funny that doesn’t make any sense, we’re going to do that too,” Seinfeld said. 

Seinfeld, whose penchant for cereal was part of the background of nearly every episode of his hit sitcom Seinfeld, broke down the ratio of fiction to non-fiction in the story for People magazine. “I would say 99% is fabricated, which was the fun of it. But I love the idea of serious people working on cereal and with suits and ties and talking about Pop-Tarts and cereal and eating cereal. I’ve always loved cereal.” 

If you want to make Unfrosted a part of your complete breakfast, pop on Netflix on May 3rd.