Black Widow is the highly anticipated stand-alone movie focusing on Natasha Romanoff’s blood-stained past. The movie takes place in the two-year gap between Captain America: Civil War and Avengers: Infinity War. That also explains how Marvel can do a Black Widow movie in the first place, considering Romanoff sacrifices herself to ensure the Avengers can secure the Soul Stone in an effort to take down Thanos.
Although this is the first trailer released to the public, a lengthier version was shown off at Disney’s biennial D23 fan convention in August. The trailer focused on Romanoff’s trip to Budapest — a location that Clint Barton (Hawkeye) referenced multiple times in various Avengers movies, including Endgame. This trailer contains an impressive scene between Romanoff and a woman named Yelena Belova. Belova becomes the second Black Widow in the comics series and is referred to as Romanoff’s sister in the trailer.