Complex sentence: The same year he also acted in the movies "Buddy" and "Ulvesommer", and the next year he made his debut as a director and writer with the movie "Uno", in which he also acted.
Split into simpler sentences: The same year, he also acted in the films "Buddy" and "Ulvesommer". The next year, he made his debut as a director and writer with "Uno", in which he also acted.