Anyone Notice?
Great re-creation of Penn Station!
shareNot exactly.
IMDb says second unit filming was done in the Pennsylvania Station, in Manhattan. From having been in the original Penn Station, I say it looks real.
It would have been a busy place during WWII, but filming was still possible.
E pluribus unum
Are you thinking of "The Clock" (1945) where they recreated Penn Station?
http://onthesetofnewyork.com/theclock.html