You may not have heard of the White Widow, one of the world’s most wanted terrorists, who has been linked to over 400 murders, including London’s infamous 7/7 bombing attack in 2005.

But her latest project may be her darkest yet: an adaptation of the 1987 Debra Winger movie, “Black Widow,” set to stream on Hulu. The show will tell the story of an FBI agent who tries to use ...