U. Minnesota professor of physics and author of The Physics of Superheroes served as a technical advisor on Watchmen:
"When I saw 'Iron Man,' I was one of very few people who got excited about the soldering," he said. "Robert Downey Jr. was using the same soldering tool I have in my lab to build his armor, and he was holding it correctly."
This started a discussion this afternoon with a couple of my classmates about the over-the-top safety-geek things we notice in movies: Bob the Builder's personal protective equipment, surgical masks in 24 where he ought to be using a supplied air respirator.
4 hours ago