Source: http://gizmodo.com/5819429/listen-and-watch-how-the-sounds-of-transformers-3-was-made
Soundworks Collection has a great little feature on a very big movie called Transformers 3. Heard of it? Sure! In this video you get to see how the movie's sound effects were made using dry ice, electric guitars and more.
We already know the creative sound methods used in Transformers 3: Dark of the Moon (like tigers with emphysema) but in the video above you get to see the sound artists actually at work. Their passion for the project and getting it right bleeds through, they examine every detail of every possible sound everywhere. Dry ice melting on metal is freaky, they used it. Spending days on an electric guitar is painstaking, they did it. It's always awesome to see behind the scenes of movie making magic. [SoundWorks Collection]