The film industry is highly competitive for all jobs, including those for voice-related occupations such as: announcers, narrators, broadcasters, and voice over talents
Although, small or independent filmmakers and networks have better job prospects for those just starting out in the industry.
Employment is usually centered in major cities with the majority in New York and Los Angeles, although the Austin, TX film industry has really taken off.
Voice jobs in film not only require that you have a great voice with a range, but also the acting talent to go with it. Voice over jobs that require you "get into character", such as working on an animated film, can be very difficult and require talent and skills. Broadcasting and announcer gigs don't require the acting talent, so much as the ability to ad-lib and think fast.