For your B-movie viewing entertainment: Greenland https://www.imdb.com/title/tt7737786/?ref_=nv_sr_srsg_0 https://www.imdb.com/title/tt7737786/?ref_=nv_sr_srsg

For your B-movie viewing entertainment: Greenland https://www.imdb.com/title/tt7737786/?ref_=nv_sr_srsg_0 https://www.imdb.com/title/tt7737786/?ref_=nv_sr_srsg_0 features an interstellar comet (those go much faster than regular comets, you know) which has broken into fragments, and they're all slamming into Earth. One of the fragments is bigger than the Chicxulub asteroid, so it's curtains for everybody! Everybody except the special few who've been selected to go to a military bunker near Thule air base in Greenland to ride it out and then rebuild civilization after it's all blown over. Since all disaster movies have to feature a parent being separated from their child and/or spouse and frantically trying to find them amidst all the chaos, I'm probably not giving anything away when I mention that plot element.