Snowden is a great movie with a lot of solid examples of video effects. Some of the effects can be created with tools from the DAMAGE suite. Here are a few pointers on how you can create something similar!
A lot of effects in DAMAGE are best used at a fraction of a second. In the example above, we see a lot of horizontal lines disrupting the image. Interference works great for achieving this look. Simply apply the effects to your image and change the parameters accordingly.
Here's a tutorial on Interference that shows how effective it can be.
We also have plenty of free presets available, if you have a case of creative "writers block". Check them out here.