_Zotz!_ -- the movie

Tom Posten finds the ZOTZ! coin, and discovers its awesome powers. He attempts to make the secret available to the US government, but is brushed off as a lunatic. Tom has some fun with the power of Zotz. The discovery becomes the interest of foreign agents, who attempt to steal the secret any way they can. Tom is captured, then escapes and is pursued. At the conclusion the coin is lost, our government realizes its error, and at the end of the movie is engaged in a massive search for the coin.

And besides Tom Poston this movie has Jim Backus, Margaret Dumont and Julia Meade. Perhaps unsuprisingly, it was a William Castle production.