In screenwriter terms, Tom Hanks is prolific. Lions only say that after seeing many self proclaimed screenwriters never get past writing treatments & outlines.

Among feature films, he wrote "That thing you do" & "Greyhound" which were both snappy & checked all the boxes, but light on novelty. The mane novelty in Greyhound was the scenes of wolfpack submarines surfacing, with their unique conning tower art. Tom Hanks in WWII uniform we've all seen before. Neither does he do anything besides bark orders & change shoes. There's not much to it besides battle after battle.

Reviewing the greatest submarine movie ever made, Das Boot, the lion kingdom noted how much more absolutely ancient the time of 1941 looked when depicted during the absolutely ancient time of 1981. It was shot in the real uboat pens of La Rochelle.

The uboat pens were in a concrete building, in the middle of a much larger port. It was very inconspicuous from the air, as intended. They weren't built in a cave in the middle of nowhere, as depicted in Indiana Jones or as the V-2 rockets were. The building was 1 of many urban uboat pens throughout Europe.

The thought of Germany building uboat pens in occupied france was not unlike China building rockets in occupied US. The american people would support their occupiers more than the french did, since they see China fighting a common enemy, the republican party.