When they are at the Pine Wood Derby all of the boys have exactly the same uniform and they are all bears. There should be tigers, wolves, and webelos present. A Pine Wood Derby is a pack event, not a den event. There would be boys from different ranks and dens therefore they would have different color hats, neckerchiefs, and different den numbers on uniform.
Scene outside lottery office. Camera pans lead character, background shows someone walking in shorts.
There does not seem to be sufficient time between the moment Holly and Max enter the house to the moment they discover the Christmas lights outside, for Mike and Joe to have put the lights up.