http://www.geekosystem.com/batman-bioshock/

"Oh, what’s that… what’s that thing where they’re in a underwater city? And it’s all dystopian, with enormous mechanical guards? Like, there’s this billionaire capitalist who’s starting a new civilization based on his rules, and he doesn’t want anyone interfering with it? But then the heroes come in and stop him with help from Mr. Freeze?

Oh right. It’s an episode of Batman: The Animated Series and it’s called “Deep Freeze.”"

Compare to the synopsis for the original BioShock, courtesy of Wikipedia:

wrote:

BioShock is set during 1960, in Rapture, a fictional underwater dystopian city. The history of Rapture is learned by the player through audio recordings as he explores the city. Rapture was envisioned by the Randian business magnate Andrew Ryan, who wanted to create a laissez-faire state to escape increasingly oppressive political, economic, and religious authority on land. ...By New Year’s Eve of 1959, “[Ryan's] paranoia had reached such a level he was hanging dozens of people, mostly innocent, in Rapture’s main square.”

There's more in the article but it is amusing.