Audio problem: Unlike the second movie, the jet engine sound was not dubbed over the piston engine sound. The fact is, the jet engine in the Batmobile is a fake.
Audio problem: Bruce watches Commissioner Gordon on tape at his party. In the first part, the audio is laid wrong and their mouths don't match.
Audio problem: When Vicki is kissing the Joker's arm near the end, the sound of her kissing is a fraction of a second off, enough to be noticeable.
Audio problem: Knox is thrown from the hood of Vicki's car into a pile of garbage. He cries "No, no, no." He is obviously dubbed, as his cries continue briefly after he has already landed in the garbage.
Answer: He could have looked up her address in the phone book. Just before Bruce arrives at Vikki's apartment, Joker asks Bob the Goon for - a phone book. Also he could have been tailing Bruce and found her apartment that way, after all he does show up not long after Bruce does.
Alan Keddie