Sony TV has a rather amazing commercial you can see online. Here’s a description of the clean up after the ad was shot:
The Clean Up
Our latest TV ad – featuring massive paint explosions – took 10 days and 250 people to film. Huge quantities of paint were needed to accomplish this, which had to be delivered in 1 tonne trucks and mixed on-site by 20 people.
The effect was stunning, but afterwards a major clean-up operation was required to clear away all that paint!
The cleaning took 5 days and 60 people. Thankfully, the use of a special water-based paint made it easy to scrape-up once the water had evaporated.
Keeping everyone safe was also an important factor. A special kind of non-toxic paint was used that is safe enough to drink (it contains the same thickeners that are sometimes used in soups). It was also completely harmless to the skin.