This 7-part Vanity Fair on Amazon Prime isn't bad. Episode 3 kicked the series into gear with Amelia and George, Dobbins, and Becky and Rawdon following the troops to Brussels to fight Napoleon. They are befriended by Mrs O'Dowd, Amelia becomes jealous of Becky's flirtation with George, and they attend the famous Duchess of Richmond's Ball where George asks Becky to elope with him just before Napoleon's advance is announced and the ball ends with the troops heading to Waterloo. Chaos ensues in the panic of the British wives and nobility to evacuate in case Napoleon wins the battle.
The novel makes much more of the famous ball, and I wish the series had as well; it was essentially reduced to Lady Bareacres being a complete snob to her inferiors, particularly the novel's main characters, George treating his wife Amelia poorly to flirt with Becky, and George giving Becky the letter asaking her to elope just before the ball ends with the orders for the trroops to prepare to march.
As soom as I finish Kritzer World, I'm reading the novel again.