The female character, at the end of the film, is wearing a dress revealing minor cleavage.

Three instances of gun violence.

A tentacle plant attacks Iris which is in turn attacked by the crew.

The professor is shown with blood on his lips.

None of the violence is graphic, but the scene with the rat bat spider crab is slightly disturbing.

One instance each of "hell" and "dolls" (as a term for women).

Two instances of pipe smoking.