While the routes and entry positions suggested on this page detail the standard ways in within the industry, the ability to stand out and have demonstrable skills will serve potential applicants well.
Thinking outside the box and gaining relevant experience in another sector can be a sound alternative. There is no set way to forging a stable career in film and taking a different tack may serve some people better than those looking to climb the traditional ladders available to them.
The only key thing to consider is how to gain the necessary skills for the desired area of work. This may involve anything from working in PR in the corporate world before shifting to the marketing department of a production company; tackling finances in the city before taking on producing work; or building a reputation as a photographer before being entrusted with directing a feature.