Men's formal evening wear would be what we now call " White Tie."

男士正式晚装就是我们现在所说的“白色领带”。

The top hat is the most distinctive accessory in men's formal evening wear and the movie makes quite a spectacle of this.

大礼帽是男士正装晚装中最有特色的配饰，电影中对此进行了精彩演绎。