Thanks to Ryan for the tip. He says:
"Hey man, I read your blog daily and I love when you spot 'burgh references in pop culture stuff so I thought I'd tip you off to one if you haven't already seen it. I'm watching Late Night with Jimmy Fallon right now, and Jake Gyllenhaal was just on and they did a nonsense song about sandwiches, and then after the break Jimmy was like what's your favorite sandwich? Jake said Primanti Bros, and Jimmy actually knew what he was talking about. Represent."
I didn't find the clip Ryan was talking about, but Jake still mentions Primanti Bros at the 3:25ish spot of the clip above.
Yeah, this isn't really sports-related, but whatever. I just watched Donnie Darko for the first time in several years a few days ago, so go with it. Plus, Jake's talked about the Steelers on late night shows in the past, so there's that, too.
And Anne Hathaway is really hot. The end.