The painting that introduced "Star Wars” to the world nearly 50 years ago — and was reproduced in an iconic movie poster — sold at auction on Wednesday for $3. 875 million. The acrylic and airbrush painting by the artist and movie poster designer Tom Jung first appeared in newspaper advertisements on May 13, 1977, a little less than two weeks before the space epic created by George Lucas opened. It also adorned billboards, magazine ads and theater programs. “For most of America, this a...