does anyone know of any theaters still showing this movie in the okc area?

If you're online, you should be able to also do an online theater search to see...

Off the top of my head I would imagine only dollar theatres. Quail Springs might still have it if they had an "extra" auditorium, though I figure they'd lose it this week if they hadn't already.

The movie was extra-fail which was why its disappeared so quickly. It made no money.

I am confident "MacGruber" will become a cult classic. I haven't laughed that hard in a theater in years!