Some cleavage not too revealing and there is a kissing scenes but it's not implied to be sex

There are scenes of impactful, but fantastical, violence in which mutants and aliens battle each other with a variety of powers.

One battle features stabbings and neck-breaks, but without strong detail.

"Magneto" crushes some villains in a train wagon. You briefly see the aliens being crushed but there's no bloody injury.

There is little actual gore. In one scene one person is impaled in a somewhat bloody manner. But overall, the body-count is through the roof and intentional killings, while real-life understandable, are way beyond comic book.

A character goes on a crazy rampage killing people by touching their heads and disinagrating them.

A character gets stabbed in the back but heals instantly

Quicksilver is seen with a bloody face after Jean grey throws him.

PG-13 violence type: blood and gore.

One use of "fuck", and several uses of "shit".

Some smoking and drinking.

In an opening scene, a woman and a dog are implied to be murdered by aliens. Nothing is shown.

The setting is very darker than any x men movie witch means it does get pretty serious, brutal and intense