What are the statistics?

From looking at http://boxofficemojo.com/alltime/world/ The vast majority of the list are forms of action films.  The highest grossing being Marvell's Avengers which grossed $1,511.8 Million. This suggests that the making of an action film may have more interest in the general public due to the fact that the highest grossing thus most watched films are action. In more research I will be analysing other introduction sequences of high grossing films to find any correlations which may be the key to great opening sequences which I can put in mine.