SilverWook said:

Caught part of the Voyager episode "Prophecy" tonight, and it's got some Klingon cruiser shots you might be able to use, including an explosion.

It might work, but the format of the episode may cause some problems. Voyager was shot on tape and formatted in a 4:3 image. If we're going to use anything from the footage, we'll not only have to make the image look like film, but also zoom in or crop the image to fit it within the 2:35:5 aspect ratio for the rest of the film.