Too cool for that

Wait a minute. He's sneaking girls into a pg-13 movie... how old are the girls?

Is everyone aware there's a Hey Arnold movie where he finds his parents? It came out a few months ago.

I'm just going to point out that there is only one way to actually sneak into a pg-13 movie... and that's to go see one after you saw another movie. They will sell pg-13 tickets to anyone... it's just a guidance, there is no actual restriction.
This all assumes you pay for a ticket*
Friends at the side door ftw.

He's sneaking in cause movies are fucking expensive