I bought tickets for us four last week, for Wednesday at 7:30.m. I think the theaters are scrambling to accommodate viewers - I bought these tickets the same day that this theater announced - before the announcement there were three in the metro area - now there are at least 15, maybe 20. And I see Ebert and Roeper have given it "two thumbs way up."
http://www.suntimes.com/output/entertainment/cst-nws-passion22.html