Although this area of work is open to all graduates, a degree/HND in the following relevant subject areas may increase your chances: interactive/multimedia technology or design/animation; computer science/software engineering; maths or physics; engineering or electronics; 3D design or digital art; graphic design/illustration; spatial design; fine/visual art.
Many university courses in multimedia and computer sciences have sandwich years in industry, which may be valuable for portfolios, and hands-on experience is reassuring to employers who are hiring for entry-level positions.
Employers will want to be sure that candidates have a strong programming background and so courses in maths, engineering, art and design may be a good entry route if the candidate can also display aptitude and skills in multimedia applications.
Entry without a degree or HND is difficult in view of the intense competition, but having a strong portfolio or experience in designing personal web pages may help. Some employers may prefer graduates to Diplomates.
A pre-entry postgraduate qualification is not needed, though an MSc in Multimedia or similar may compensate for a non-relevant first degree.
An employer is unlikely to hire you without seeing examples of your work. Pre-entry experience is desirable and relevant vacation work, voluntary work, projects or placements will be an advantage.
A flash disk, CD-rom or personal website demonstrating a broad skill set can be used to support a CV or application form. It is important to build up a good personal multimedia portfolio to demonstrate skills and creativity; this might include an interactive website, an animated computer game, or learning or presentation materials incorporating a variety of media.
Employers also usually look for knowledge and experience in a combination of: relevant software: eg Flash, Photoshop, Flex; programming languages: eg C++, Java, .NET; scripting languages: Actionscript 2 + 3, Javascript including AJAX, Ruby, SQL, PHP, XML, CSS, XHTML. Actual employer requirements vary depending on the sector and the platform being used.