Hardly any. Two suitors proposed to Lucy on the same day and she made a choice and this happened before the film even starts. It's mentioned throughout and it's a strong theme for the film but there's as strong as it gets.

Very mild for a vampire film.

None.

Very mild. One character has a nasty shock and another character mentions getting the first one a brandy. A couple of drinks are then shown. That's it.

Moderate. The first part of the movie concerns an investigation into an ill woman and there are scenes of blood transfusion (but no blood shown) and discussion of symptoms and a sense of dread. The woman then becomes a vampire and the focus shifts to accepting her transformation and the traumatic way to deal with it.