Planning - Using Green Screen?

We have been told that the college does have Green Screen equipment which students are allowed to access. Green screen allows you to put a false but effective background on to your video and this is useful for people who cannot access their locations e.g. disallowed filming areas. The Green Screen technique allows you to mix two images or frames together, an example would be the actor doing a dance and the setting would be set in space in which would be impossible to film in real life.

After having a group talk, we decided not to use this technique because it is not necessary. We are able to access all our locations and we do not need large sets/artificial setting. The theme to our song is more of an urban feel so we need locations which have graffiti which we have visited already.