Charlize and Jackson Theron in Madrid Pictures

Charlize Theron stepped out of her Madrid hotel yesterday holding her son, Jackson, in her arms. The pair are touring Europe together while she promotes Snow White and the Huntsman. Charlize and costar Kristen Stewart have made stops in Paris, London, Berlin, and now Spain. Their leading man Chris Hemsworth stayed in the UK following Monday's big premiere to spend time with his wife, Elsa Pataky, and their newborn daughter, India.

Charlize and Kristen have stepped out in a variety of glamorous red-carpet looks. Yesterday, however, the pair kept it casual in sneakers and black pants for a visit to the Spanish TV studios of El Hormiguero. The hosts had Kristen and Charlize try a silly science experiment that involved wearing protective eyewear and gloves. SWATH hits theaters on June 1, but press duties will continue for Charlize, who is also starring in Ridley Scott's sci-fi thriller Prometheus, out on June 8.