It's not quite a universal rule: stars who already have a strong international following such as Sophie Marceau and Michelle Yeoh will have had no difficulty shrugging off their chains. Hollywood is too small for these wonderful characters anyway and there are plenty of stages and screens in the world. And - irrepressible and incorrigible - I'm sure Halle Berry will be earning both Oscars and Raspberries for years to come.
However it seems there is a way out for the others: while other Hollywood doors close, the science fiction door stays open! Izabella Scorupco from Goldeneye makes an appearance in Reign Of Fire as a dragon-fighting paratrooper, for instance, or there's the wonderful indie film Franklyn, starring Casino Royale's Eva Green. Goldeneye also gave the world it's Dr. Jean Gray, Famke Janssen who also appeared in The Faculty, and in general had no difficulty finding work after her Bond Girl role. Meanwhile Michelle Yeoh has appeared in sci-films ranging from the wonderful Sunshine to the less wonderful Babylon A.D.
One possible theory for the Curse is the essentially submissive role of the Bond girl - successive films have tried to create stronger female characters, but however assertive or action-orientated the part, the film format generally requires that Bond eventually "gets the girl." It's not a great explanation but it's a start. An exception is Olga Kurylenko in Quantum of Solace, whose character Camille does not end up in bed with Bond: it's too early to say whether this will lead to a different outcome for Kurylenko's career.