While some see the Boston Globe article mentioned as a goof, it is not. Actually, there was an initial article written around 2011 by a female journalist for the Globe that exposed the betting groups and the flaw. The HuffPost article was written later and focused more on Jerry and Marge themselves.
Jerry didn't in fact work for Kellogg his whole life up until retirement, he left Kellogg in his late 40's and ran a local convenience store in the town for 17 years before retiring and embarking on the lottery journey.
The story is set in the present day, rather than in 2003 when the story happened in real life.
The song that Jerry and Marge dance to in the liquor store is the same song used by the California Lottery in their ads.
Rainn Wilson's character store owner Bill is based on Paul Mardas, the owner of Billy's Beverages in Sunderland, Massachusetts. The store was renamed Bill's Liquor Hut in the movie.