Children of the damned (1963)

aka Horror.
"Paul! Paul, stop it!"
Paul (Clive Powell) is a strange child with an abnormally high intellect. He is being studied by Tom Llewellyn (Ian Hendry) and David Neville (Alan Badel), when they are told that five other children with exactly the same intelligence are being flown into Britain from their various countries. Paul seems to have telepathic abilities, but it is only once the children meet, that their real abilities are revealed.
This continues the story from Village Of The Damned, with a crisp little thriller. Not up to the original, but still up to most of its ilk. The adults are initially intreged, but this gives way to fear when it becomes obvious that they cannot be controlled.