Although Captain America and Black Widow were on opposing teams during Captain America: Civil War, Natasha did try to look out for Steve at various points in the movie, and at the end of the airport fight, she let him and Bucky escape so they could track down Zemo.
You can Captain America, Black Widow and a whole lot of other Marvel heroes in action in Captain America: Civil War, now playing in theaters across the U.S.
Spider-Man, Hawkeye vs. Black Panther, etc. However, one fight that didn’t make the final cut was Captain America vs. Black Widow.
At 147 minutes, Captain America: Civil War is not only the longest MCU movie, but one of the longest superhero movies ever.