Luiz Carlos Barreto

Background
This was a film company founded by Luiz Carlos Barreto. Not much is known about it, though.

1st Logo (March 12, 1979)
Logo: On a black background, a connected "LCB" is drawn in. Then, "uma produção Luiz Carlos Barreto" in a marker-drawn font wipes in below.

Technique: Motion-controlled animation.

Music/Sounds: None.

Availability: Seen only on Amor Bandido.

2nd Logo (February 9, 1980-August 9, 1982)
Logo: On a black background, the "LCB" from before draws in, and the name of the company/filmmaker in uppercase fades in below, followed by "APRESENTA" below shortly.

Technique: Motion-controlled animation.

Music/Sounds: None or the opening theme.

Availability: Very rare. Shown on Bye Bye Brasil, Prova de Fogo, O Beijo no Asfalto and Índia, a Filha do Sol.

3rd Logo (January 14, 1982-May 5, 1988)
Logo: Same as above, but the "LCB" zooms from the start before settling, and the fonts are in a typewriter font, with "Courier" added next to "Courier". "APRESENTA" is replaced by "Courier", and both fade quickly.

Technique: Motion-controlled animation.

Music/Sounds: None or possibly the opening theme.

Availability: Very rare. Shown on a small majority of movies from the era, such as Luzia Homem and Além da Paixão.

4th Logo (September 27, 2002)
Logo: On a black background, three themed circles with inner cutouts from big to small zoom in and simultaneously rotate before settling in. "Oswald" in an arc shape slides upon the big circle, and settles in.

Technique: Computer animation.

Music/Sounds: None.

Availability: Rare. Seen only on A Paixão de Jacobina.

5th Logo (November 17, 2009)
Logo: A lens flare can be seen passing by as it reveals the circles from before, with the other two in a color, sliding in altogether, also accompanied by two black circle with inner cutouts from big to small. The lens flare passes behind them, and "LCBARRETO" reveals by letter order and settles in.

Technique: Computer animation.

Music/Sounds: A shiny theme with a slight, dark theme midway.

Availability: Uncommon. Seen only on Lula, o Filho do Brasil.