Diario de México & Nicandro Cardenas T for several photos via Twitter. Fox Mexico has videos via Periscope: Daniel y James con los fans & Cada vez más cerca de Radcliffe y McAvoy. Via Spencer Soloman there are videos (one below) and photos (socks). Via 20th Century Fox there's Daniel's thank you speech. A video from De Pelicula on Facebook and photos by Check back at this post later, if more videos might appear, I'll add them.
Update: 3rd May 2016. Movie Network.
Update: 6th December 2016. Photos from Asher Silva Vargas. Daniel signed his Guinness world record certificate. He has the largest collection of Harry Potter memorabilia.
This video is also shared by danieljradcliffe.tk on Facebook.
Via Spencer Soloman
picture source: Victor Chavez