Sony Pictures Imageworks has released a visual effects breakdown video for Marc Webb's The Amazing Spider-Man 2. It specifically focuses on Electro's awesome ability to dematerialize and rematerialize in the film. The video is narrated by Digital FX Supervisor David Smith, and it shows off a lot of cool stuff.
I loved how Electro was portrayed in the movie. He was a really cool character, and the way they showed him use his abilities and powers was really fun to watch on the big screen.