name of the movie where the last scene is of people getting food at a carnival food stand and a bunch of people gathering in the street

After a violent storm, a dense cloud of mist envelops a small Maine town, trapping David Drayton and his five-year-old son in a local grocery store with other local residents. They soon discover that the mist conceals deadly horrors that threaten their lives, and worse, their sanity.

A small town family is torn apart by a brutal crime. As they deal with the fallout an eerie mist rolls in, suddenly cutting them off from the rest of the world, and in some cases, each other.