I found a clip from Wilde on a fansite for Orlando Bloom. Jennifer Ehle is in it for about a mili-second, but still thought it's worth looking at!
Also, even though there's no behind the scenes featurette on the Sunshine DVD, this is the next best thing. This article talks about the early days in the production of Sunshine and how the idea for the movie arose. The Producer, Robert Lantos, Szabo, and Fiennes talk about the movie.