A news conference to promote his movie "Valkyrie" turned into something of a fan club meeting when a journalist said he promised his niece he would get a photo with Cruise. The actor immediately obliged.
That prompted another journalist to squeeze under a barrier for a photo. Guards stopped other reporters from doing the same.
Cruise says he's enjoying his five-day Brazil trip, but sometimes stumbled over differences between Latin American nations
He thanked one questioner with the Spanish "gracias" - though Brazilians speak Portuguese. And he said he enjoys the tango - the traditional dance of neighboring Argentina.