Staying for less than 24 hours, the pair wowed star-struck Brazilian fans and journalists alike during the film's premiere Tuesday in the South American nation.
Cruise posed for numerous photos with fans - and even bounced a football off his head at the behest of the host of a local comedy show.
Cruise told reporters that his daughter, Suri, who came with him and wife Katie Holmes last year while promoting his movie "Valkyrie," adored Brazil but could not make this trip.
Diaz squeezed in a helicopter tour of Rio and declared the city "stunning."
The pair was scheduled to leave for Mexico after the premiere.
