Mysterious man, secret powers and shrunken man in a bottle - spoilers

[wositelec]

I'm looking for a movie - it is maybe from 1970-1995, probably USA . The main character is a guy has some kind of secret powers? He was an evil trickster and had a gallery exhibition, or had some kind of museum to which he invited a friend? The final scene - the guy is in some museum, or there invites someone. They are arguing and this let's say bad guy grabs him and crushes him, miniaturises him to a size of about 10 cm, pushes him into a vessel (maybe a jug or a bottle) and also puts him on display as an exhibit. Some people come in who are visiting this museum, maybe a gallery and he bangs on the walls of this vessel, but nobody hears him, he's so tiny.

Every help will be appreciated.

[Archivist]

Could it be Attack of the Puppet People?

https://en.wikipedia.org/wiki/Attack_of_the_Puppet_People

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[wositelec]

It isn't, but thank you. It was movie from 80s or 90s.

[Archivist]

It isn't, but thank you. It was movie from 80s or 90s.

Do you recall when and how you saw it? For example, on normal TV, cable TV, some time in the 90s, perhaps on a local broadcast?