Given scene/plot descriptions from movies or TV shows, and given a specific question about the scene, summarize the question into a title

In the 2011 film Rise of the Planet of the Apes, there is a scene where Caesar escapes from the house, attacks the neighbor, and during that attack he bites the man's finger.    During that sequence, we can clearly see that he does not lose his finger, but it is bloody.   Was this a mistake in the film?  Every time I watch this film, and that scene comes up, it seems to me that Caesar bites off the mans finger. But in the next shot, he has his finger back.  Later in the film people are discussing if it's safe to continue to have Caesar in the house, and one person mentions the attack. If I remember correctly, it's stated that the neighbor lost his finger.  It seems like an important plot point, because the neighbor mentions that he's a pilot. So loosing a finger would be kind of a big deal for him.  What is the correct result of Caesar's attack? Or was there some kind of last minute change in the editing room to keep the finger.
Was Caesar supposed to have bitten off the neighbor's finger?

On the Cartoon Network show Level Up they changed the actor playing Max Ross, the creator of the Conqueror of All Worlds game. In the movie he was one guy and now for the series he is someone else.  It seemed that the network green lit the series early on because it's been getting announced ever since the movie was first aired. So why was this one actor replaced?
Why was the game designer actor replaced in the show "Level Up"?

Can someone please explain the flying car to me at the end of the movie, and how no one seems to act as if the car taking off with Danny and Sandy is anything out of the ordinary?  Is this symbolic of anything?

What is the symbolism of the flying cars?