When a lively young family moves in next door, grumpy widower Otto Anderson meets his match in a quick-witted, pregnant woman named Marisol, leading to an unlikely friendship that turns his world upside down.

Young Sammy Fabelman falls in love with movies after his parents take him to see "The Greatest Show on Earth." Armed with a camera, Sammy starts to make his own films at home, much to the delight of his supportive mother.