Indiana Jones and the Kingdom of the Crystal Skull (2008)

Factual error: In the warehouse scene, the lights and other metal objects are affected by the box's magnetic field. Yet the soldiers easily lift the box into a metal truck to load it and slide it forward. If the box's magnetic field was as strong as suggested, it would have dragged the soldiers forward as it was magnetically attracted to the truck, and it would have taken much more effort for them to slide it onto the truck bed once it was stuck there.

Indiana Jones: Put your hands down, will ya? You're embarrassing us.

Trivia: The young Henry nicknamed himself "Mutt, which is also a term for a dog. Indy named himself after a dog he had as a child that was called Indiana (as noted in the third movie). This is the first hint about their relationship.

Question: Perhaps I've forgotten some details from The Last Crusade in the years since I've seen it, but shouldn't Henry Sr. not be dead in this movie, because he drank from the Holy Grail which gives immortality?