This is why marvel is the best. (Also random note I saw on another pin, in the scene where he's trying to get away from the police in his apartment, he never uses his metal arm. He punches people with his right arm. Aw)
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.