Bare-chested male

None. A husband and wife are shown sleeping in separate beds (common in films at that time).

The main character punches out an FBI agent.

The main character punches out a man inside the power station.

A man is punched and knocked to the ground.

There is a brief operation involving the transplant of a heart, although not graphic in any way it's made clear what is happening.

Man has large 'L' shaped scar on his chest from operation.

None.

A doctor gives an injection of sodium amytal to be used as a truth serum.

Several character's in the film engage in either the smoking a of cigarette or a pipe.

There are scenes of aliens discussing the destruction of the Earth.

There are scenes of giant insects and lizards.

Dr. Martin (Peter Graves) is seen in dangerous situations and in peril on several occasions.