Translated text below. Don't know if this is just Gerry "talking", or if he actually plans to return next year.
http://ego.globo.com/Gente/Noticias/0,,MUL1499829-9798,00-GERARD+BUTLER+QUER+APRENDER+INSTRUMENTO+PARA+SAIR+NA+BATERIA+NO+PROXIMO+CAR.html
Gerard Butler wants to learn an instrument to leave the battery in the next carnival
Actor was delighted with the merry Rio: 'I've never seen anything like it'.
Pleased with the carnival, Gerard Butler promised to return next year, according to the column "Page 3 of the newspaper O Dia.
"Next year, I'll play the drums. That's my goal for next year: learning to play an instrument to go out on the drums," said the newspaper.
The star of '300 'was also surprised with the production of the festival. "I've never seen anything like the carnival. How do people pay these fantasies," he asked.