Kissing, sexual innuendo, women scantily clad and showing cleavage, a trailer is rocking and a couple inside are moaning (we briefly see thrusting with the man on top, but no nudity other than bare shoulders).

An alien is strangled by a chihuahua that has it's head on a human woman's body, though this is way more hilarious than it is violent.

A woman is crushed and killed by a falling chandelier

Lots and lots of explosions, lots of people are shot with Martian weapons which vaporize them into skeletons. Shooting with guns, falls, things fall on top of people and crush them, fistfights and punches, a man is impaled with some blood on his chest, a man is made smaller and then squashed.

Many Martian heads explode into green goo. The Martians are gross-looking and twice we see Martian autopsies.

A man's finger is bitten off and we see the bloody stump -- and bloody finger as fish in an aquarium nibble at it.

A woman is left holding a bloody hand when her boyfriend is vaporized, animals are burned and vaporized, body parts are floating in jars and Martians play with body parts.

A dog's head is grafted onto a woman's body, the woman's disembodied head screams and is later seen on the dog's body.

A man's head (with bloody stump) is held by wires while his mutilated body (complete with beating, bloody heart) hangs nearby.

Two disembodied heads roll around, people fly through the air while the Martians shoot and attack. About half the main characters die.

5 uses of "shit" (1 used as "bullshit", and 1 used as "shithead"), 11 uses of "hell", 2 uses of "assholes", 1 use of "Jesus Christ", 1 use of "Holy mother of god", 1 use of "Oh Christ".

Pierce Brosnan is seen smoking a pipe on several occasions.

A woman has an alcohol problem, and is seen at an Alcoholics Anonymous meeting.

Jack Nicholson is seen drinking and in a drunk state.

Younger viewers might find the Martians and their squawking voices scary.