That was my first thought, as well, especially considering the Hanoi Jane connection.
Early in The China Syndrome, the characters played by Jane Fonda and Michael Douglas witness an event from the control room observation area at a 4 year-old, single unit, inland sited, 800 MWe nuclear power plant whose characteristics roughly match those of Rancho Seco, a sister plant of TMI unit 2.
movie event — which the Douglas character insists on calling an accident, even though there was no core damage — is described as a turbine trip with a loss of feed water. The first indication in the control room is a shuddering floor that makes the water cooler and a cup of coffee shake. The horn blares frequently enough to distract the shift supervisor, and nearly every light on the expansive monitoring panels flashes, demanding attention.
During the event, there is a stuck open relief valve, a pressurizer level indication that pegs high, operator worries about going solid, operators that stop High Pressure Injection during the casualty, and a need to manipulate stop valves for the relief valves.
In other words, with all of the possible nuclear plant events that the writers could have picked, the fictional event was virtually identical, in initial stages, to the real event.