The Broadway musical appropriately called Seussical already does a pretty good job of collapsing Dr. Seuss' whimsically rhyming worlds of children's books into one universe. But now, this impulse of cross-pollinating Seuss' influential, charming work is going to make it to the big screen; in other words, we're about to get a DSCU. Per Vanity Fair, three upcoming Dr. Seuss animated films are coming from Warner Animation Group, Bad Robot, and producers J.J. Abrams and Hannah Minghella. First on the docket? A new, animated take on The Cat in the Hat, ostensibly since the live action …