Kerosene fog. He's using our smoke machines.
4 seconds sound clip from the V for Vendetta movie soundboard.
You can hear this line at 00:21:58 in the Blu-ray version of the movie.
Quote context
[...]
- More than 400 years ago, a great citizen wished to imbed the 5th of November forever in our memory.
- And together, we shall give them a 5th of November that shall never, ever be forgot.
- Kerosene fog. He's using our smoke machines.
- Cover the exits. No one gets out.
- Left. You go right. Spread out.
- Don't shoot! Please don't shoot!
[...]