Her contract with 20th Century Fox specified that there would be no cutting away from her to reaction shots and/or dialog from other players while her musical numbers were in progress.
She was 5' tall.
She was in two films with Cesar Romero.
In the 1940s she was the highest paid star/performer in the United States.
Although a huge star in Brazil, she was actually from Portugal. Although she became a naturalized Brazilian citizen, she also kept her Portuguese citizenship, never gave up her Portuguese passport and privately considered herself Portuguese rather than Brazilian.