I don't know why this movie is called "The Thing."  It is supposedly a "prequel" to the 1982 movie "The Thing" starring Kurt Russell. I guess "The Thing Before The Thing" was just too much to put on a marquee.

"The Thing" is a monster that can shape it's dna like it's kills; therefore it can look EXACTLY like a human, which makes it uberscary. I personally like it when it's morphing between victims, it just looks nasty.  Check out the preview below.