When they're searching for salt at Evelyn's house, Sam says "Low sodium freaks," plural. However, every indication is that Evelyn lived alone.
The father's bones that Dean dug up seemed really white considering that he has been buried for a long time.
The timeline doesn't fit. Sam said that the Telescas died four days ago, the night they bought the painting. But later in the episode he says that the painting was stored until a month ago where the Telescas bought the painting at a charity auction.
The scene where Dean, Sam and Sarah walk into Evelyn's house and find her dead, you can hear Sam yelling for Sarah not to touch Evelyn. However, his mouth is closed.
There are many issues involved with Dean breaking the glass of the mausoleum. When he punched the glass and hit it with the handle of his handgun the glass flexed, but did not break. This would indicate that it was not glass but some type of material similar to plexiglass, which didn't exist until years after the family died. Also, when he shoots the glass, there was no indication of a bullet hitting the back of the case after passing through the glass, meaning the bullet disappeared between the glass and the back wall.
When Evelyn takes off her glasses, she places them lenses out. But when the camera cuts to an overhead shot of Evelyn sipping her tea, the lenses are facing toward her.
Sam: (about the painting) So what do you think? It's haunted or cursed?
Dean: Either way, it's toast.
Sarah: So what exactly is your brother doing in there?
Sam: Searching county death certificates. Trying to find out what happened to Isaiah's body.
Sarah: How do you even get in the door?
Sam: Lying and subterfuge, mostly.
Dean: (to Sam) And I don't mean any disrespect, but I'm guessing this has to do with Jessica. Now I don't know what it's like to lose somebody like that... but I think she would want you to be happy... God forbid have fun once in a while... wouldn't she?
Ann Telesca: I can't believe we actually bought this thing.
Mark Telesca: There's a reason charity auctions have an open bar.
(in the mausoleum)
Dean: You notice anything strange here?
Sarah: Uh, where do I start?
Dean: No, that's not what I mean. Look at the urns.
Sam: Yeah, there are only four.
Dean: Yeah. Mom and the three kids. Daddy dearest isn't here.
Dean: All right, well, if Isaiah's position changed then maybe some other things in the painting changed as well, you know, could give us some clues.
Sam: What, like a Da Vinci Code deal?
Dean: I don't...know, I'm still waiting for the movie on that one.
Sam: What kind of house doesn't have salt? Low sodium freaks!
Sarah: Uh, isn't this a crime scene?
Dean: Well, you've already lied to the cops. What's another infraction?
Sarah: There are a million things that I want to say to you, but for the life of me, I can't think of one.
Sam: Yeah, I'll miss you too.
Dean: Consignment auctions, estate sales - it's like a garage sale for WASPs if you ask me.
Sarah: You're shameless, you know that?
Daniel Blake: For that kind of money, I can afford to be.
Sam: Thanks, Dean, but I can get my own dates.
Dean: You can, but you don't.
Sam: You know, I don't get it. What do you care if I hook up?
Dean: Because then maybe you wouldn't be so cranky all the time.
Sarah: You guys are uncomfortably comfortable with this.
Sam: Well, this isn't exactly the first grave we've dug. Still think I'm a catch?
Sarah: So this is what you guys do for a living?
Sam: Not exactly. We don't get paid.
Sarah: Look, you guys are probably crazy, but if you're right about this, well, me and my dad sold that painting. We might have got those people killed. Look, I'm not saying I'm not scared, because I am scared as hell. But I'm not going to run and hide, either. So, we going or what?
Dean: Sam, marry that girl.
Sam: I don't understand, Dean. We burned the damn thing!
Dean: Yeah, thank you, Captain Obvious.
Sam: And nothing. That's it, I left.
Dean: You didn't have to con her or do any special favors or anything like that?
Sam: Dean, would you get your mind out of the gutter?
Sam: All right, so I think I got something.
Dean: Oh yeah, me too. I think we need to take a little shore leave, just a little. What do you think, huh? I'm so in the door with this one.
Sam: So what are we today, Dean? Are we rock stars. Are we Army Rangers?
Dean: We're LA TV scouts looking for people with special skills. Hey, it's not that far off, right?
Dean: Grant Wood, Grandma Moses...what?
Sam: Art History course. It's good for meeting girls.
Dean: It's like I don't even know you.
Sam: Maybe you can get her to write it all down on a cocktail napkin.
Dean: (laughs) Not me.
Sam: (laughs) No, no, no, no. Pickups are your thing, Dean.
Dean: It wasn't my butt she was checking out.
Sam: In other words, you want me to use her to get information.
Dean: Sometimes ya gotta take one for the team. Call her.
Dean: (mumbling to himself) I'm the one who burned the doll and destroyed the spirit, but don't thank me or anything!
Denmark: May 14, 2006 on TV3
Portugal: February 12, 2007 on AXN
France February 19, 2007 on TF6
Belgium: August 8, 2007 on VT4
The Netherlands: November 9, 2008 on NET5
The song playing in the bar at the start is "Night Time" by Steve Carlson. Jensen Ackles sings backing vocals on some of Steve's other songs.
Music: Bad Time by Grand Funk Railroad, Night Time by Steve Carlson Band & Darren Sher, Romantic Pieces, No.1 by Extreme, One More Once by Black Toast Music
In a shot of parked cars near the beginning, the first one's license plates is "THE KRIP" - an in-joke reference to Eric Kripke, the executive producer and creator of the show.
Dean: Daddy dearest isn't here.
Mommie Dearest was a 1981 film about actress Joan Crawford and her adopted daughter's efforts to please her. It was based on the 1978 book written by her daughter, Christina Crawford.
Sam: What, like a DaVinci Code deal?
The DaVinci Code, a novel by Dan Brown, is about the search to uncover a code that will lead to the secret of the Holy Grail. It was made as a movie on 5/19/06 and stars Tom Hanks.