I don't know if this movie was created for the cinema or TV. I'm not wondering why it didn't find the way to our theaters. What I missed there was a fine cinema picture like in the usual movies and a good audio. Then the setting place in this diplomatic house seemed too poor and cartoonish. The ideas therefore were original but the terrorists were too harmless. There were not any special effects. I think there could have been done more if the budget was higher. There were anyway many twists and plots that kept your attention until the end. If they show it on cable watch it if you have nothing to do but I don't know if the rental is worth. It is perhaps too underrated with actual vote of 3.5 on IMDb. My wife and me give 5/10.
Review of Diplomatic Siege
