Two scenes of passionate kissing.

Multiple instances of mild war violence.

Three instances of gun violence, one mildly graphic.

A man falls overboard on a ship.

One instance of "darn".

One instance each of cigarette smoking, pipe smoking, and drunkenness.

Being a WW2 film, there is Nazi imagery throughout.

There is a [rather bizarre] scene of that includes several ethic jokes, mostly at the expense of Americans.