I googled it, Tank Girl started in a British magazine that publishes new authors, but has been published all over the place. At various times it has been published by Darkhorse Comics and Vertigo, wich are both owned by DC. But she isn't a DC property. Tank Girl was kind of manic and irreverant and liked to stir up **** and screw with mean people for the sake of it. Spoiler about Supergirl's character - Spoiler This version of Supergirl (at least as she appears in the comic) appears to basically be clinically depressed, and she self medicates with alcohol but she is also governed by an intense sense of right and wrong that eventually causes bad people to piss her off so intensely that it drags her out of her near perpetual funk. Her makeup in the comic is more ike beat up, run down, old Wolverine from the "Logan" film, than Tank Girl. Spoiler about the plot - Spoiler The whole plot of the comic (which I've heard is very closely adhered to by the film) is basically about saving Krypto, by chasing down the bad guy (Krim of the Yellow Hills) who poisons him when Supergirl is stumbling home at the end of a drinking binge. (She needs a sample of the poison so a healer can make an antidote.) Krim then flees in Supergirl's space ship and joins up with a group that pilages and murders planets for fun and profit - like the Reavers from Guardians of The Galaxy, but without any sort of moral code or restraint and no soft hearted Yondu - more like real pirates, less of the comic relief. Also, Superhorse makes an appearance in the comic. Wonder if they're brave enough to bring him to live action. Finally, Lobo doesn't appear in the comic at all, so they're shoehorning him in specifically to introduce him for the DCU.
If this Supergirl movie is what it takes to launch Jason Momoa as Lobo, we have something to look forward to in a couple of years. Paramount and David Ellison will decide.
youtube's random vid suggestion threw this out there's something about her that appears different here
