human touch, whereas RF is used where ownership and rights issues are either cleared or easier to handle.
There are many reasons why using stock footage may be a good idea. It is often used to simply bridge two scenes, it may be used to plug a hole (you really needed rain for your shots, and the drought just kept on for the entire production), it could be used to supply the opening shots to set a scene (like an establishing shot of Champs Elyseès to set the scene in Paris), it could be used if you need unique material (like from a particular incident during WW2), it could be used to illustrate a principle or a concept (like melting ice in the Arctic to illustrate global warming), or it could be used more freely and creatively, like in short films, commercials, art films or indiefilm productions.
Entire storylines can be built using stock footage, and the costs