The Snowman is about a not nice person killing people and putting their heads on a (you guessed it) snowman. Read the full article on AICN Ahoy, squirts! Quint here. The only things you really should know about The Snowman before you watch it is that it's a Se7en-ish serial killer movie starring Michael Fassbender, Rebecca Ferguson, Charlotte Gainsbourg, JK Simmons, Chloe Sevigny, Val Kilmer and Toby Jones, directed by LET THE RIGHT ONE IN's Tomas Alfredson. Your ass should already be in that seat.