During the softball game, Buster knocks down Saito as he runs the bases. When Saito is helped up and begins walking off the field, he puts his sunglasses on crooked, as if they are broken. In the next cut, while still walking off the field, Saito's sunglasses are gone.
When Hunt gets back from Japan, he sees and mentions how the local pizza place closed yesterday. Later, while calling potential employers trying to relocate, he is eating some slices from what looks to be a local pizza place box.
At the end of the softball game, Buster intentionally runs into Saito, who is about to catch the pop fly that Hunt put up, and helps his team win. According to the rules, Buster should have been called for interference because Saito has the right to field the ball. The runs that Hunt brought in would not count. Assan Motors would be given the third out and the game.
When Hunt Stevenson meets the Japanese managers for the first time, they hand their business cards over with one hand. Japanese business protocol requires formally presenting business cards, holding them with both hands.
They need to make 15,000 cars in one month. It is never stated what month that is. However, they leave after 14,000 cars. But the next scene is shown at the July 4th Celebration. Unless they made 14,000 cars in 4 days, the plant would have been shut down by the 4th.