Gunpowder consists of potassium nitrate (saltpeter), charcoal, and sulfur. I know cause I made some in High school chemistry right in front of my clueless teacher. It is not magentic. I like the shotgun thing though and love the hanging lights pointing to the box while Indy is on the crates. One of the few true Spielberg shots in the film. I say we cut from Indy asking for a compass to the scene with the shotgun shells.
I loved the Hound Dog opening as well. Not a must by any means, just think the whole opening lasts a BIT too long. This includes the Indy/Spalko dialog so if we cut that and the gunpowder bit, it would be fine.
Agree about Part time and Not as easy as it used to be lines though. These were better delivered in the trailer.
What are your thoughts on the "Hi, Mac!" before Indy punches Mac. I like the "Jonesy!!" then smack! Indy lays him out. The chase needs less light hearted humor I think. This would make it a bit more rough and tough like Indy should be.