As the sequence continued it became apparent that Clarisse was an intelligent woman considering she worked in a lab.
The use of the lab in the opening sequence also gave the audience the impression that the film is not only a thriller based film but had further psychological aspects to it. Furthermore her intelligence was again reflected through her high status job and the mid shot when in the lift with only men, who are in fact dressed in the same uniform which conveys her independence and confident attitude; allowing her to stand out from the crowd.
However the mid shot also shows that she is towered over by the males yet is not dominated in any way as she seems more relaxed in her surroundings as opposed to being tense or anxious.