At their first concert, They Might Be Giants performed under the name El Grupo De Rock and Roll (Spanish for "the Rock and Roll Band"), because the show was a Sandinista rally in Central Park, and a majority of the audience members spoke Spanish. Soon discarding this title, the band assumed the name of a 1971 film "They Might Be Giants" (starring George C. Scott and Joanne Woodward), which is in turn taken from a "Don Quixote" passage about how Quixote mistook windmills for evil giants. According to Dave Wilson, in his book "Rock Formations", the name They Might Be Giants had been used and subsequently discarded by a friend of the band who had a ventriloquism act. The name was then adopted by the band, who had been searching for a suitable name.