No. It's not Romy Schneider. The first image of #2 we see in the video is of a woman who is at least in her 60s. Romy Schneider died at 43.
I wasn't 100% sure when I posted last night, but I can now say #2 is definitely Anita Ekberg.
Here's a Daily News article about her from 2015, the year of her death ...
Anita Ekberg in 'La Dolce Vita' (1960) was sexy, but also symbolic - New York Daily News (nydailynews.com)
If you scroll down the article, the second image of Ekberg in 1955 is a different pose but from the same photo shoot--she is wearing the same dress and earrings--as one of the images used in the video.