8. Gears Of War
https://www.youtube.com/watch?v=ccWrbGEFgI8 Short but sweet, this Gears of War trailer had people intrigued from the get go, with its amazing graphics and inspired use of Gary Jules' cover of 'Mad World'. The second game's trailer went for a similar effect with Devotchka's 'How it Ends', but it didn't quite reach the heady heights of the original. In all fairness, this trailer didn't quite match the tone of the games themselves, but it did more than enough to get us to pay full attention.