Watch The Flintstones (1994) HD Full Movie Free on SolarMovie. Watch The Flintstones (1994) online free. In a parallel modern-day Stone Age world, a working-class family, the Flintstones, are set up for an...In a parallel modern-day Stone Age world, a working-class family, the Flintstones, are set up for an executive job. But they learn that money can't buy happiness.