Complex sentence: He began directing theatre in 1990 with a series of adaptations of plays by Strindberg and Ibsen, to whose work Blixfjord has since returned.He went on to work with multimedia, and later to direct film in 2000.
Split into simpler sentences: He began directing theatre in 1990 with a series of adaptations of plays by Strindberg and Ibsen, to whose work Blixfjord has since returned. Following these productions, he went on to work with multimedia, and later to direct film in 2000.