Visual effects are very important in films. Film is make-belief. While it is important to have an engaging and strong script, the scrip must be believable. The best way of making a script more believable is to use good quality and powerful visuals. In most cases, it is not easy for movie directors like Jason Murphy to film everything as demanded by the script in live action. The directors might not even want to get rid of a specific shot since it would negatively affect the overall flow of the film. In such cases, visual effects come in handy.
In Zombies! Zombies! Zombies! by Jason Murphy, for example, there are many sequences and scenes that will give you a lot of goosebumps. Since this was a low-budget indie movie, it would have cost a lot of time and money to capture certain situations in a more realistic way. To reduce the costs, visual effects were used to make things appear real on the screen. Perhaps the biggest advantage of visual effects in films is that it gives filmmakers, writers and directors the freedom to tell a story. Through visual effects, a filmmaker can do anything in the film including changing a character into a large zombie.
It should be remembered that visual effects are not just for fantasy, horror or science fiction films. Visual effects can be used broadly in present-day comedies and period films too. In a typical film, visual effects can cover many things including creating and changing backgrounds, creating virtual shots, adding creatures, characters or actors that were not available during the initial filming, changing actors and adding props or objects. Visual effects can also be used to remove objects, obscure objects and add eye effects. To ensure visual effects are well utilized in a film, VFX artists must work closely with the cinematographer and director when editing the film.