While promoting that film over the last several weeks, Mr. Cruise engaged in an increasingly public discussion of his religion, Scientology. Then he set tongues wagging in Hollywood and elsewhere with an hourlong appearance on the May 23 "Oprah" show, during which he jumped around the set, hopped onto a couch, fell rapturously to one knee and repeatedly professed his love for his new girlfriend, the actress Katie Holmes.

Many Hollywood stars are involved with the Church of Scientology, and there is nothing particularly unusual about trumpeting a new love. But some executives at Paramount and DreamWorks have voiced concern that fans were becoming distracted from the movie, which cost some $130 million to produce.

"You can have so much attention on a particular issue that maybe the movie doesn't get as much attention as it might," Marvin Levy, a spokesman for Mr. Spielberg, a partner in DreamWorks, said of the show.

In an interview with Der Spiegel in April, Mr. Spielberg found himself defending Mr. Cruise's dedication to Scientology by comparing it to his work for his Shoah Foundation, which promotes education about the Holocaust. A DreamWorks executive called the exchange unfortunate.