i am sure even though there will occur a nominal-boycott for Frenchs films it will last short-time. Because you know this probable war will take a short time for Bush administrations or i should say USA-Military and people will forget this and everything will go on as it was before the war...
if all people had boycotted all opposing countries, believe me we would have just seen our own films...
we boycotted (  i mean Turks) italian productions for they kept a notorious terrorist Ocalan ( whose terrorist-group killed 30,000 Turks!!!) and some italian-made films' release was postponed, then Turks forgot this boycott just in a month and every italian production is eveyrwhere now...!!!
Also i m sure everybody who is making money from films (whether rightits or any other USA citizens) wont let this political issues to affect their source of money and will make great effort in order to decrease this boycott...
Money talks...! :))