“Star Wars: Episode III — Revenge of the Sith” has blasted its way into the record books with a $50 million first-day domestic gross, easily eclipsing the marks for opening day and best single day.

The Force is strong in this one – $158.5 million strong. That’s the record-setting box-office take for Star Wars: Episode III Revenge of the Sith during its four-day opening weekend, surpassing by 18 ...