If John Carpenter’s “The Thing” were remade by Lars von Trier on a nickel-and-dime budget, partway through an extensive substance-abuse binge – well, I’d really like to see that. Also, it might come pretty close to “Blood Glacier” (“Blutgletscher,” irresistibly, in the original), a hilarious, ridiculous and sometimes genuinely scary climate-change thriller from Austrian director Marvin Kren.