When the gang see Knives and Young Neil together, Ramona asks, "How old is she?"
The other selections on Scott's wheel are...
-No speaka English
-Tell Pac Man story
-No, you are
-It was nothing
If you frame-advance right before the shot zooms into his face, Cera looks really creepy. His face goes silhouette, but his eyes get big and are still normal colored.
EDIT: Just watched the making-of documentary on the blu-ray. It's really well done in the way you can feel the love that went into the production. Because of that, I'm actually disappointed by how short it felt. It's 45 minutes, but I wish it went on forever since it was a particularly long shoot.
EDIT2: There's a bit of rehearsal footage of the first scene of the film where Allison Pill recites some of her dialog with an English dialect. She's Canadian, right? I wonder if she was just messing around...
EDIT3: Oh, Mark Webber's doing it too. They must've just been messing around.
EDIT4: I'm watching the costume/hair/make-up test footage they filmed for nearly every one of the main characters. There's no audio other than a mellow portion of the original score (at least until it gets to Envy). It feels like I'm watching a fashion ad directed by Sofia Coppola or something. It's an odd feeling. It's a really cool special feature. The closest thing I've seen to the costume/lighting test montage on the Moulin Rouge DVD/Blu-ray, except way more expansive.