Via @BelAmi_Movie
You can listen to the whole interview at the BBC Radio 1 at the 1:16:00 mark or just the Rob and 'Bel Ami' mentions on the youtube video below (there's only audio on the video, no image)

Denise Cronenberg, Cosmopolis costume designer (and David Cronenberg's sister) talked to Grazia Live about working with Rob
Grazia Daily: You’re working on Cosmopolis with Robert Pattinson now, what’s that been like?
Denise Cronenberg: Oh, he’s lovely! He’s such a nice, sweet kid. He’s intelligent and smart; he was very brave to take on something like this because I think he was quite hesitant at first. But David is wonderful with actors and he’s a father of three, so he uses that. He and Robert had a wonderful relationship. It was an unusual film to do, very unusual. We had to do a rave, street fires and have cars exploding for this film! David and I decided what we thought we’d put Robert in. I then talked to Gucci who were incredible and gave us all his clothes. He’s dressed from head to toe in Gucci from the tie to his socks! And we had no money, like really, no money so we could never have done it without them.
Thanks to @KristensLegs I Via

There will be a livestream available for the photocall, press conference and premiere at the Berlinale website.
When it's time, just click on "Press Conference" for the photocall and press conference and on "Red Carpet" for the premiere here: LIVESTREAM
The photocall starts at 1:45PM CET (Berlin time), the press conference right after at 1:55PM CET and the red carpet at 6:45PM CET.
In EST/PST:
Photocall - 7:45AM EST / 4:45AM PST
Press Conference - 7:55AM EST / 4:55AM PST
Premiere/Red Carpet - 12:45PM EST / 9:45PM PST
According to Studio Canal, Rob, Uma Thurman, Christina Ricci and 'Bel Ami' directors Declan Donnellan and Nick Ormerod, will be the ones promoting the movie at the Berlin Film Festival.
24:00 - She says she loved filming Water for Elephants and cried when she had to say goodbye to Tai
26:30 - Says she loved Water for Elephant's dresses
33:00 - She says that Rob loves animals, that it was the reason he agreed to do the movie. Talks about Tai and that she was always following him and that he was also good with Uggie.
44:00 - Her most challenging role was Water for Elephants because of the circus training, learning how to work with the elephant and the horses.
47:00 - How was to play Rob's love interest in Water for Elephants and his mother in Vanity Fair? "Totally weird".
or watch at the source