Hi Maureen! Welcome to the board! You aren't giving anything away
I think Star Wars is more popular now than it was when the first one came out in '77!
Windham makes an opalesence in white and it has a shinny look to it, though a picture doesn't do it justice. I just saw it at a local quilt shop,
https://www.ericas.com/fabric/opalescence.htm (last one on the page), and thought it looked great. Another possibility would be from Robert Kaufman, called Ultra Sheen.