I just re-watched Argo (2012) after not having seen it in quite a while. In the meantime, I've watched the series Halt and Catch Fire (2014–17). So I couldn't help noticing that Scoot McNairy and Kerry Bishé play husband & wife in both. I'm not aware of any other connection between this movie and that TV show, and these two don't seem to be married in real life or anything, so what gives? It's especially interesting because, in both cases, McNairy is playing a dorky guy who seems to be punching well above his weight, spouse-wise. Both of these couples are a bit hard to accept, at first glance.
Is there some reason that these two play a married couple in both these stories? Is it purely coincidence?