"How would play your role differently in the Spanish version?"<< THIS WAS THE MOMENT I FELL IN LOVE WITH THIS MAN!!! It might have something to do with the fact that my mom is Hispanic, so it's cool to see that he likes his Spanish name. :)
In the comments of the original video, someone translated his words. Sebastian told them he was going to mention Civil War in the midst of his Romanian just to mess with the audience. So no, he actually didn't spoil anything from the film.