It won't necessarily get you the job you're applying for, but it will get you in the door for an interview. Its purpose is to sell you, as a provider of your services, to a prospective employer. Every piece of information you include in your resume will be directed at making that sale. You must use your resume to convince two important customers to buy your services: Recruiters and Hiring Managers. Think very carefully about how you want to be represented by this document. Generally speaking, your CV should not exceed two pages (not including the cover letter).
The recruiter and hiring manager may have dozens or even hundreds of resumes to evaluate for a position, so your resume has to be concise and to the point.
NOTE: Do not start your CV with words Curriculum Vitae, in super huge font. Put your name, this is what the document is about!