Bill Condon (Beauty and the Beast's director) was asked about the filming of the movie and about the "beautiful Emma Watson" while at the Mr. Holmes premiere. His answer about her was:
Oh my God, I think she's gonna blow everybody away. We've already done two of her musical numbers. She's a beautiful singer, a wonderful dancer. She's become one, you know, for this movie. And she's done... she's just one of the hardest working people I've ever met. She's just doing a really really beautiful job so far.
WATCH FOR YOURSELVES (starts at 0'36)
Also, yesterday, while Emma was filming at the Pinewood Studios, Disney posted a snapchat:
Thanks a lot to M.Abdullah for it.