These markets will resolve using the "Domestic Opening" number listed on BoxOfficeMojo https://www.boxofficemojo.com/title/tt15239678/.
I will use the "Domestic Opening" listed on BoxOfficeMojo, however it is defined. For a concrete example, the "Domestic Opening" for the original "Dune" would have been $41,011,174.
For context, AFAIK, typically that "Domestic Opening" number is the 3-day total (plus Thursday/other "previews") for North America (e.g. it wouldn't include a holiday Monday). But that's just my informal understanding, not a rule for resolution—I will use their "Domestic Opening", however they calculate it.
These markets are independent—any number of them can resolve YES. I may add additional markets (above, below, or in between), but this has no impact on the current markets.
If somehow "Dune: Part Two" is delayed again (which I can't imagine it will), I'll update the resolution date.
If any aspects of resolution are unclear, just ask.
For more of my "Dune: Part Two" markets, check out this dashboard
Dune: Part Two is headed for an excellent $81.5-million opening weekend, according to Warner Bros.’ Sunday-morning projection