This is a fan site. I don't own Superman, Supergirl, Superboy or any other related character. I'm just a fan.
Superman has been created by Jerry Siegel and Joe Shuster. Property of DC COMICS.
Supergirl (Kara Zor-El) has been created by Otto Binder and Al Plastino. Property of DC COMICS.
Batman has been created by Bob Kane and Bill Finger. Property of DC COMICS.
The Superman movies, the Supergirl movie and TV series, Smallville, the Batman movies are properties of WARNER BROS.