A Night at the Movies: Merry Christmas! is a tinsel-filled journey through the most iconic holiday films of all time, including perennial favorites It's A Wonderful Life (1946) and Miracle on 34th Street (1947). The special looks at variations within the genre, such as holiday romances, family movies, and even thrillers. A Night at the Movies: Merry Christmas! features behind the scenes stories and personal Hollywood Christmas memories from the likes of Chevy Chase, Margaret O'Brien, Chazz Palminteri, Deborah Raffin, Karolyn Grimes, Zack Ward, Brian Henson, Joe Dante, Trine Mitchum, authors Julie Salamon and Alonso Duralde, A Christmas Carol expert Michael Patrick Hearn, and many more.

With his naïve air, his rangy and reassuring silhouette, James Stewart symbolizes success, someone who everybody wants to look like. Behind his legendary nonchalance, Robert Mitchum is the figure of the bad boy, the kind-hearted hooligan who anyone would like to have for accomplice. What is the legacy left by these two big myths of the Hollywood cinema and in which way they fed the American dream?