Complex sentence: The "Balikpapan" L129 HMAS Tarakan is seen in the World War II film "The Thin Red Line", an anachronism since it is a post-war landing craft.
Split into simpler sentences: The "Balikpapan" L129 HMAS Tarakan is seen in the World War 2 film "The Thin Red Line". Which is an inaccuracy in the film as it is a post-war landing craft.