Miyagi and Daniel check in for the All Valley Karate Championship in the corridor outside the Matadome at Cal State Northridge.
The Matadome at Cal State Northridge has been substantially upgraded since the production shot there. However, the west side entrance looks virtually unchanged.
The All Valley Karate Championship was filmed in the Matadome at Cal State Northridge.
Zabka attended Cal State Northridge as a film major before getting cast in The Karate Kid.
Macchio says that many angles, along with slow motion, were shot for the final kick, but in the end one simple shot worked best: low and wide. "To credit Billy Zabka [who] took an amazing hit, the kick is great, but the hit was even better," says Macchio.
"Hey, Mr. Miyagi, we did it!" Avildsen says The Karate Kid originally was supposed to end in the parking lot after the tournament. (This is where the 1986 sequel picks up.) However, after the crowd carries Daniel off, Avildsen knew there couldn’t be a better ending. "Well, how can I top this? I don’t need the scene in the parking lot," Avildsen remembers thinking at the time. "How can the audience feel better than at that moment? And I feel that's when you always turn on the lights."
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http://www.laweekly.com/slideshow/the-valley-as-seen-in-the-karate-kid-then-and-now-4790827