Complex sentence: Since 1982 Aubrey Powell has been involved in film making, first as a producer/writer and then as director, and in 2011 completed a documentary which took two years to make about the bull runners of Pamplona, shot in HD and 3D.
Split into simpler sentences: Since 1982 Aubrey Powell has been involved in film making, first as a producer and writer and then as director. In 2011 completed a documentary which took two years to make about the bull runners of Pamplona, shot in HD and 3D.