Superman/Supergirl continuity
 

I have a question about supergirl.
Ok, in Superman: The Movie with Chris Reeve, Kal-El wears the S on his chest because that is the symbol Jor-El wore upon his before the destruction of Krypton. How could the S stand for Superman if the S was Jor-El's symbol. Lois Lane gives Kal-El the nickname "Superman" after their date if I remember correctly so before she called him Superman, he was not known as Superman. What a nice coincidence that she named him Superman AND his father's symbol was an S.

So the question is, why does supergirl wear an S on her chest like superman? Could it be her family's symbol as well or is she just copying Superman's suit. Is this just a movie goof? Perhaps Michi heavenly could shed some light for me?

this might help...
http://en.wikipedia.org/wiki/Superman_logo

Or maybe she just wouldn't be able to call herself Supergirl if she didn't.

The Supergirl movie is pretty cheesy but it is certainly watchable. It helps that Helen Slater is cute, and I've always kind of liked the Supergirl character. I marked out when Kara came back, because I like the junior versions of superheroes. I like Wonder Girl more than I like Wonder Woman.