I have no expertise, just scientific curiosity. One thing I’ve never seen in films, but feel certain would happen with explosive decompression is fog/cloud formation at least while the air in the aircraft holds more moisture than the ambient pressure can keep in vapour and after a period of cloud formation all surfaces should have condensation on them until the ambient air is dry enough for it to evaporate again. Hero in the hold trying to stop cargo from going would also have to contend with wet, slippery containers.
unless I’m wrong and someone here would be kind enough to point out why it all happens too quickly to make it worth showing on film