You guys are so dumb. If that was a time traveler you think they would be out in the open using a cell phone. They would not want to bring any kind of attentiopn to themselves. They would not be walking around a busy street and in addtion in front of a movie being shot. Holy cow what happened to the Getbig brainiacs. Someone already posted what it was. And how does a cell phone work with no cell tower. Satellite phone? Have you seen how big those are? Jeez this is why I love Getbig sometimes. It actually makes me feel smarter than I really am.
Out in the open? Its a movie. The people making the movies(Jews) are in on it. The only people who would have questioned it at the time are other actors/extra's. And they most likely wouldn't have said a word anyway. Most never would have saw/caught it. And if someone did, they would have thought it was a movie prop.
There is a secret vault that holds all the past inventions of other advanced civilizations that date back over a billion years that only a few select bloodlines get to know about.

If most of the human race was wiped out and brought back to the stone age today, we too have also built an advanced vault with all our technological achievements for someone to find. And you can rest assure that it would be only a select few of certain bloodlines who would be allowed to know about it. History repeats itself