 In 2004 Calvo debuted in the big screen with director José Luis García Sánchez with a short role in the movie "María querida".In January 2004, she made the leap to national politics when the Secretary-General of the Socialist Workers' Party, Zapatero, created a "committee of notables" to advise him on his run to the premiership and appointed her a member of that committee.In the Spanish general election in March 2004, she was elected to the Congress of Deputies, representing Córdoba.