General Knowledge
Real or CGI Quiz
Can you tell what's real and what's computer-generated? Test your eye!
Can you tell what's real and what's computer-generated? Test your eye!
Avengers: Endgame had CGI in nearly 100% of its 3,000+ shots โ yet many scenes feel completely real. Meanwhile, some locations that genuinely exist โ like China's Zhangye Danxia rainbow mountains or the Door to Hell in Turkmenistan โ look so surreal they're often dismissed as CGI. This quiz challenges you to distinguish the digitally created from the genuinely real, from landmark films to stunning natural wonders.
Each round presents 10 randomized questions from a pool of 50, with four multiple-choice options and instant feedback. You'll learn about the history of visual effects, how to spot AI-generated images, and which real places look computer-generated.
You'll discover the history of CGI from its 1973 origins through the AI era, how the uncanny valley effect explains why near-human faces feel wrong, which blockbusters used surprisingly little CGI, and the telltale signs of AI-generated imagery. Did you know Mad Max: Fury Road (2015) used 80% practical effects despite looking like pure CGI?
Common tells in AI-generated images include: malformed hands (extra or merged fingers โ AI consistently struggles with hands), garbled or nonsensical text in signs or labels, perfectly smooth skin with no pores or imperfections, ears and teeth that lack anatomical detail, symmetrical lighting that feels unnatural, and overly perfect backgrounds. AI tools are improving rapidly, but hands and text remain the most reliable indicators in 2024-2025.
The first CGI in a film was a brief 30-second sequence in Westworld (1973), directed by Michael Crichton, showing a pixelated robot's vision perspective. The first CGI character with a face appeared in Young Sherlock Holmes (1985) โ a stained-glass knight that walked and fought. Jurassic Park (1993) pioneered photorealistic CGI creatures, and Toy Story (1995) was the first fully CGI feature film.
The uncanny valley is a concept proposed by roboticist Masahiro Mori in 1970. It describes how our emotional response to human-like objects becomes increasingly positive as they look more human โ but drops sharply into discomfort when something looks almost-but-not-quite human, before rising again when realism is perfect. Films like The Polar Express (2004) and Cats (2019) famously fell into the uncanny valley, making digital humans feel deeply unsettling.
Last updated: March 2026