A fantastic colloquialism, queimar o filme means to do something to hurt your reputation.

Here are some examples:

Meu amigo chamou a namorada dele pelo nome incorreto. Queimou o filme! My friend called his girlfriend by the wrong name. Queimou o filme!

Usei uma palavrão na minha redação, e meu professor notou. Pode crer? Queimei o filme! I used a swear word in my essay, and my professor noticed. Can you believe it? Queimei o filme!

The expression, which literally means to burn the film, refers to the act of exposing undeveloped film to sunlight, thus ruining the contents. It is very colorful and descriptive, and provides a good image for those moments you just wish you could take back. Without a doubt we’ve all “burned the film” a few times (at least); I know I have!

Obrigado Guilherme por me ajudar mais uma vez!