Shooting on green screen involves the use of a green screen as the background while filming actors and other elements of a movie. The green screen is then replaced with computer-generated backgrounds and special effects in post-production.
In some instances, shooting on green screen can be less expensive than traditional filming methods. For example, instead of building a physical set or traveling to a specific location, filmmakers can create the desired background using computer-generated imagery. This eliminates the costs associated with set construction, location scouting, and transportation.
Additionally, shooting on green screen can allow for more flexibility in post-production. Scenes can be easily re-created or altered if necessary, without the need for costly reshoots. This can save time and resources in the long run, particularly for movies with complex visual effects.
However, it is important to note that shooting on green screen is not always cheaper. In some cases, the cost of computer-generated imagery and special effects can outweigh the savings achieved from not building a physical set or traveling to a specific location. Additionally, the technical skill and equipment required for green screen filming can also add to the overall cost.
Furthermore, green screen filming can also be more time-consuming and require more resources. For example, actors may need to perform against a green screen, which can be a challenge and requires careful choreography. In addition, post-production can be more complex, as computer-generated imagery and special effects must be added to the footage.
In conclusion, while shooting on green screen can be less expensive in some instances, it is not a guarantee. The cost-effectiveness of green screen filming will vary depending on the specific project, and filmmakers should carefully consider their options before deciding on the best approach. As a source, the British Film Institute states that "the choice of whether to use green screen or not ultimately depends on the specific needs and goals of each project."