Movie Composer's Toolbox
I'm sure that some of you would pick piano, and this is a very good choice. The piano is one of the most versatile instruments available, and if you need music for a film, this could work--in some situations. The piano is great for suspenseful scenes, romantic scenes, calm, peaceful scenes, and sad scenes. However, if you are making music for a film that's set in Africa or Asia, I don't need to tell you that you probably don't have the right instrument for the job.
Although not quite as versatile as the piano, this instrument should not be overlooked. It can basically capture the same movie scenes as the piano only that it works even better for melancholy moments. If you want people to really be moved by your music, choose the violin.
I'm not really sure why anyone would choose this, but I'm sure there are some of you who would. And it's not a bad choice. Drums can make great tribal music, suspenseful music, and exotic music. However, by themselves they can't do much more, so this probably isn't the best choice for a solo band to have.
A lot can be done with the harp. It functions similar to the piano, although it has a more dreamy and fantasy feel to it. If you plan on writing music for an enchanted forest, this would be a good choice.
An excellent choice. Can be used in many situations. Flutes can create very sad tunes and also very beautiful ones. Perfect for certain movie scenes.
Though of course this didn't cover nearly all of the selections, this is good enough for now.