Complex sentence: It is the first entry in the series to receive an M rating, with the game's storyline cutscenes (including the starting and ending movies) being removed entirely prior to release in some European countries due to their graphic nature.
Split into simpler sentences: It is the first entry in the series to receive an M rating. In fact, the game's storyline cutscenes (including starting and ending movies) were removed from the European version entirely due to their graphic nature.