Not Kansas - S3-E21
Revealing mistake: As the guy fires the machine gun at Guardian, there's a closeup of bullet casings falling to the ground, but they're not just empty casings, they're fired blank rounds.
Supergirl (2015)
1 mistake in Not Kansas
Starring: Calista Flockhart, Melissa Benoist, Mehcad Brooks, David Harewood
More quotes from Supergirl
More trivia for Supergirl
Question: Does Kat ever wise up again to Kara's secret? That and why did she (Flockhart) leave the show only to come back?
Answer: Yes, s02e22. As Kara leaves her office, she said "go get them, Supergirl" to herself. After season 1, the show switched from a CBS production to a CW production and filming moved from L.A. to Vancouver. Flockhart isn't really a fan of traveling to shoot, and didn't want to be away from her family for so long.
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