Joker is probably going to make over a billion dollars worldwide. It’s a success far beyond Warner Bros.’ highest hopes, and one way or another, they’re going to figure out how to make a sequel even though the film was originally just supposed to be this standalone thing. Now it looks like director Todd Phillips is entertaining the idea of directing Joker 2, but only under certain conditions. [caption id="attachment_807618" align="alignright" width="360"] Image via Warner Bros.[/caption] Speaking to The L.A. Times, Phillips says he doesn’t want to do it just because it’…