She appeared in films, including It's a Wonderful World (1939), Passport to Alcatraz (1940), and The Cisco Kid Returns (1945).

[3][4][5] Musicians Olga Samaroff and Leopold Stokowski helped her make connections in Hollywood.

[6] Callejo appeared in films in the 1930s and 1940s, including Outlaw Express (1938),[7] The Renegade Ranger (1938),[8][9] Dramatic School (1938),[4] Verbena Tragica (Block Party, 1939),[10] It's a Wonderful World (1939),[11] Passport to Alcatraz (1940),[12] The Falcon in Mexico (1944),[13] Marriage is a Private Affair (1944),[14][15] and The Cisco Kid Returns (1945).

[16] On stage, Callejo danced on a program with Ruth St. Denis and others in 1933,[17] and at a benefit show in Los Angeles in 1937.

[19] She had one Broadway credit, in the original cast of the mystery melodrama The Cat Screams (1942).