Raiders would be just about perfect if they could somehow go back and fix the gaping plot hole of Indy sneaking aboard a U-boat. There is no room to sneak anywhere on a U-boat. That scene has cause me years of cognitive dissonance.
#66 There is a copy of Indiana Jones with an extra 21 seconds that explains this..... The Big Bang Theory, The 21-Second Excitation
http://www.watch-the-big-bang-theory-online.com/season-4/episode-8/the-21-second-excitation
The Big Bang Theory - Amy ruins the Indiana Jones franchise
https://www.youtube.com/watch?v=kWE6M-rhh2U
Sheldon steals Indiana Jones movie that has the extra 21 seconds of footage.
https://www.youtube.com/watch?v=whWv07rIpmI