It would never happen in a million years, but you know what would be funny? If Anna, in her quest to find and eradicate the human soul, happened to come across an episode of Supernatural. Would she try to apply what she saw to "real life"? 
"Father Jack Landry, you will summon Castiel for me immediately or else I'll burn your church down with your congregation inside."
Actually, considering how bad this storyline and the sheer stupidity of the dialog that comes out of Anna's mouth, you could put anything in there and make it sound like it's something she'd say.
"Sam Axe, I know that you used to go by the name Ash and have the Necronomicon in your possession. Give it to me."

"Father Jack Landry, you will summon Castiel for me immediately or else I'll burn your church down with your congregation inside."
Actually, considering how bad this storyline and the sheer stupidity of the dialog that comes out of Anna's mouth, you could put anything in there and make it sound like it's something she'd say.
"Sam Axe, I know that you used to go by the name Ash and have the Necronomicon in your possession. Give it to me."