I've been wondering lately, after seeing some movies with orchestral/ symphonic soundtracks that impressed me, who plays on these recordings? Do they have specific orchestras, or do they just hire big groups of pro musicians for each specific session? What does a person have to do to get into this business, i.e. what level do you need to play at, what kind of education, experience, age, etc... Do these guys do it as a full time job or just a 'gig here and there' sort of thing in addition to a regular gig? Whats the pay like? I know nothing about it, and had never really thought about it before. Anyone?