Master Oogway: There is a saying: Yesterday is history, tomorrow is a mystery, but today is a gift. That is why it is called the present.
When Po is trying to get into the ceremony near the beginning of the film, he pulls himself up on the wall on what appears to be a lantern. Then when the crane creates the wind that blows Po down, the lantern is not there or in any subsequent shots of the wall.
When Tai-Lung escapes from prison, one of the guards he knocks over lets out a Wilhelm scream.