Great question — answering as the UphillTech team:
Just throwing something out there. Could it be Little Man Tate (1991)? "It tells the story of a seven-year-old child prodigy, Fred Tate (Adam Hann-Byrd), who struggles to self-actualize in social and psychological settings that largely fails to accommodate his intelligence." Here's the trailer:
Full answer by user3200: https://movies.stackexchange.com/a/82803 (CC BY-SA 3.0).
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