Nothing explicit shown. There is a scene where Robin says he thinks Diana doesn't have enough "fun" - sex implied.

Some passionate kissing.

None. No sex or nudity. Some Kissing scenes.

1 x "God", 1 x "Shitty", 1 x "Hell", 2 x "Bloody", 2 x "Oh My God", 2 x "Bugger"

People drink at parties.

Robin says he wants to get wasted, to know how it feels.

A story about a group of men willingly dying, when allowed to, is being told. - might be unpleasant for younger audience.

Blood gushing out of a mans throat a few times.

A man talking about dying as "he has done his part". - might be unpleasant to some.

A man is being moved while covered in ice. He says he cannot move or breathe.

Throughout the movie, talk of his death being imminent (including some suicidal comments) comes from multiple characters, including two who wager on when one character will die.