However, the film did correctly predict a number of technological and sociological changes that occurred by 2015, including: the rise of ubiquitous cameras; use of unmanned flying drones for newsgathering; widescreen flat-panel television sets mounted on walls with multiple channel viewing; smart home technology; video chat systems; hands-free video games; talking animated billboards; wearable technology; tablet computers with fingerprint scanners; head-mounted displays; and even dog-walking drones. Payment on personal portable devices is also depicted. Although payment by thumbprint is not widely used, fingerprint scanning is in use as security at places such as airports and schools, and electronic payment with fingerprint scanning as a security feature is deployed for Apple Pay.