Before and After Stock Footage Mash-up.

ALL my footage has either been filmed or ripped using Keepvid.com. After ripping from Keepvid, I combine the footage with many other sources, altering backdrops, landscapes, props and colours, as well as applying effects on top, to create an entirely new peice of footage comprised of around 5 sources each.
An example would be my fake-hendheld volcanic eruption footage. I found the initial eruption footage on Youtube (http://www.youtube.com/watch?v=OowFvnlWI90). I then luma + colour keyed elements of the volcano off with softened edges (the actual crater fire) then placed many duplicates back onto itself, making the volcano appear as if it has many vents (like my concept artwork). I then keyed out a bunch of explosion + spark clips legally downloaded off Detonationfilms.com to create a faster and more violent eruption. I colour corrected the whole thing to give it a sillouhette that is eventually lit up by the explosion making it seem like "auto-exposure" on a handycam. I then layered on the noise and REC sybol to make it seem handheld. SIMPLE.
I've been inspired to work like this because of a video artist called Daniel Swan - he works in the same way, using clips off youtube to create new ones. http://www.youtube.com/user/Arstar

The scene with the multiple tornadoes whirling was taken from a National Geographic film on lightning (http://www.youtube.com/watch?v=2wY_t7zVIXY). I duplicated the actual tornadoe a few times via luma-key, then laid them onto a jpeg image of a field from google images (http://www.canada-photos.com/data/media/4/canola-field_752.jpg) which i cropped and distorted to fit the screen. The upper half with the clouds was another jpeg image which I cannot now find, I used these in front and behind the foot that steps on the area to add dimensions.
Some of the lightning footage was also taken from this footage as it was filmed in slow motion, allowing me to alter the speed as much as i wanted. It was also against near black allowing me key it off easily for other clips like the erupting volcano and explosion transitions.
To keep it all pretty different I also applied colour correctors and blurs - this also helped make some of the scenes needing dimensionality nice - it gave them a sense of focus.
Again, like all of the rest of the explosions - the footage was legally downloaded off Detonationfilms.com

When my foot treads on the city creating a massive tidal wave I used a jpeg of a toronto skyline panorama (http://www.realhoundfiles.com/images/cityscape.png). Then footage of an underwater detonation (http://www.youtube.com/watch?v=wCepZE4JR-0). This was tricky to do. It was all pretty monochromatic, making keying tough but in the end I managed to do it pretty well - bare in mind, colour correcting and glow are still to be applied to the final meaning that some of the imperfections you'd spot otherwise will not be visible.
I took the step from earlier on in the field shot. It saved time because I could just copy and paste the timeline segments into this shot. So essentially, the step is the same but the background and effects are different.

The footage of the army choreography was taken from someones handheld footage off Youtube - it has now been removed from Youtube so I can't give a link. It is the least edited footage except it's speed is slower as well as a minor colour correction.

The footage of the guns firing were ripped off Youtube (http://www.youtube.com/watch?v=AMae8-vOrBU) from an unofficial, uncopyright source (no logos or copyright notes - just like most of my other sources. Ones with have been drastically altered beyond recognition). Besides, letting students use Keepvid for other projects cant be too legal anyway right?
I wanted to use this with the marching armies to give a sense of the planets defences trying to stop the giant crushing their planet.

The footage of the house being crushed was from Youtube, again it's source has been deleted BUT I remember it was like STOCK demolition footage. I altered this loads with pyro and debrie effects clouding the screen to create the illusion that the giants foot was crushing buildings beneath him.

The rotating planet was kindly rendered for me by Ash Atherton after i told him what i needed, knowing his skills with 3DS MAX software. I made sure he gave me loops of X, Y and Z rotations for different angled shots.

The planet zoom I did myself by filming Google Earth with Copernicus (a screen recording app).

The space zoom was nicked from contact but I'm yet to edit the hell out of it, changing it's appearance A LOT via altering speed, rotation, motion blur, glow, contrast and many others.... I may even reverse it.