Looks like a pack of 4 cards given out at certain IMAX locations when you see the film, May 7 to May 10.

You need several packs to try to complete this set.

The cards come in packs of 4, but it appears that there are at least 18 numbered cards.

I have only seen one complete set on ebay the bids are up to over $ 150 on it.

There is still a lot of interest in the Mortal Kombat cards (Classic Games) that came out in 1994 so I'm not surprised at the bidding. Some collectors are still hunting the scarce Diamond and Capital variants of the D1 promo. I haven't seen one sell for a couple of years.