Walken's character jokes sexually with his wife. Mild.

It is very subtly implied that a man was anally raped by an alien rectal probe. We see the top of the man's buttcheeks.

A man almost shoots his wife.

A man has a needle drilled into his head by the aliens.

One use of "F*ckers", one use of "Sh*t", two uses of "G*ddamn", and one aggressive use of "Pr*ck"