A couple covers each others faces with kisses.

Several passionate kisses.

A few kisses. Near the beginning of the movie, we see a woman step out before an audience in a small skirt; there are some whistles.

The final boxing scene is quite intense, but there is no very excessive violence.

The violence is limited to boxing and punching; at a few points we see blood (limited to face) and after-match scars. A man is attacked from behind and hazed (more dramatic for a 40's movie). His assailant is then attacked; we see the hazed man with blood on his face. A man is run over by a car; this is off-screen, though. A man has a blood clot in his head; he later dies after falling.

None.

There is drinking and smoking. One scene shows many people after a party all with hangovers.

Other than the hazing scene, nothing.