After many years, Rocky is still romantically attracted to his childhood sweetheart. But no sex is shown.

Two mentions of the word "boner", though this is clearly used in a non-sexual context.

Young people (adolescent age) smoke and drink.

None, though there is a key scene when a character is about to be electrocuted which may make an impact on young viewers on the implications of his death: he cries and screams for mercy. He is shown in shadow silhouette struggling with the guards. His "Please don't kill me!" is cut off in mid-scream by the electric current surging through his body - not as disturbing as it would be if done in a more modern style, but still fairly disturbing. But we do not actually see him die, only the reactions of the witnesses.