In April, HBO plans to bring some star power to an event that captivated Washington — and the whole country — 25 years ago. The network’s upcoming “docu-drama,” “Confirmation,” purports to tell the true story of the divisive 1991 Clarence Thomas-Anita Hill hearings, in which Ms. Hill accused the future Supreme Court justice of sexual harassment. The film also seeks to put forward a new heroine in the story — an alleged corroborating witness named Angela Wright. Unfortunately, despite the involvement of some of Hollywood’s leading lights, viewers of “Confirmation” will end up being left in the dark.

The HBO project, which has been in development for some time, has attracted some major stars: Kerry Washington as Anita Hill; Greg Kinnear as then-Sen. Joe Biden, and Jennifer Hudson as Angela Wright, the so-called “second woman” who allegedly corroborated Hill’s story.