Of course , if any olympic marketer 's ads get caught up in the political debate , they can always tweak and rerelease the ad , or alternatively , pull it altogether , since many marketers have more than one ad lined up for the games .
For his 3-d " titanic " rerelease , mr. cameron said he had approached seven companies about working on the film , testing each by asking it to convert about a minute of movie footage before he chose the best two or three efforts .
