What significant advancement occurred with the introduction of personal computers in filmmaking?

The introduction of personal computers in filmmaking brought about a revolution in editing and special effects, fundamentally altering the production process. Before personal computers became common, editing was primarily done using physical film reels and required complex, time-consuming methods. With the advent of computer-based editing software, filmmakers gained powerful tools that enabled them to edit their work with greater precision and efficiency.

Additionally, special effects that were once only achievable through elaborate practical effects or expensive digital renderings could now be created using software on personal computers. This accessibility allowed independent filmmakers and smaller production teams to produce high-quality visual effects that were once reserved for larger studios, democratizing the filmmaking process and enhancing overall creativity within the industry.

While the other options mention related advancements, they do not encapsulate the transformative impact on editing and special effects that personal computers introduced to filmmaking. Improved projection technology and increased budgets certainly contributed to the evolution of film, and enhanced screenwriting software provided valuable tools for screenwriters. However, it is the ability to innovate and streamline editing and visual effects work due to personal computers that stands out as a pivotal shift in the way films are produced and presented.