Supernatural Season 8 Episode 12

Dean: So you're like Yodas to our Jedis.
Referencing the wise Jedi Knight of the Star Wars universe. Originally voiced by Frank Oz, Yoda was first seen in The Empire Strikes Back and went on to appear in the subsequent sequels and prequels. Although he has a tendency toward complacency, he is considered the wisest of the Jedi.

Punk Clerk: Carrie screening's on Sunday.
Referencing the novel Carrie by Stephen King, which tells the tale of a high school girl with telekinetic powers, who goes berserk during her high school prom and kills most of the students. Later made into a movie by Brian De Palma in 1976 starring Sissy Spacek. In 2002, a remake was made starring Angela Bettis.

Henry: It's from Casablanca.
Referencing the 1942 Michael Curtiz film Casablanca, starring Humphrey Bogart and Ingrid Bergman. At the end of the movie, Bergman's character, Ilsa, asks "What about us?" and Bogart's character, Rick, replies "We'll always have Paris."

Henry: Your father saw Abbot and Costello Meet the Mummy at the drive-in one night.
Referencing the 1955 film, the last of 28 that the comedy team made for Universal. The partners are in in Egypt involved in the search for an ancient medallion that they accidentally pick up.