Action movies tend to gross more money than any other type of film. To create a top selling movie is a huge accomplishment, not to mention one that is the top selling movie ever!
Avatar managed to capture the top selling movie of all time, grossing nearly $3 billion worldwide. The second best selling movie of all time is Titanic, grossing more than $2 billion worldwide. The ironic part is that they were both directed by James Cameron. The Golden Globes and Oscars were awarded to Cameron for Best Direction for both films. It is a magnificent accomplishment to say the least. Cameron takes heat on how long it may take him to finish a film, but when he does, it is seen by millions and talked about for centuries to come. Not too many other directors can say that.
Avatar managed to effect not only Americans, but those around the world including Russia and China.
Comedies have not been as successful as action films apparently. There was only one comedy in the top 10 movies of all time which was also a family movie entitled Shrek 2. Other movies that rounded off the top selling movies ever consist of such films as Star Wars, The Dark Knight, E.T., Pirates of the Caribbean: Dead Man's Chest, and most recently Marvel's the Avengers. It seems as though action films that the entire family can attend seem to be the most successful types of films at the box office.
Other action films such as Spiderman, Transformers, Harry Potter, Lord of the Rings, and Hunger Games continue down the list of top selling movies ever. Sequels tend to also be a major money maker especially for such films as Spiderman, Jurassic Park, Lord of the Rings, and Harry Potter. Shrek 2 landed a in the top 10 best selling movies ever, but the third and fourth didn't do nearly as well. On the other hand, the first Harry Potter and its sequels managed to take spots in the top 40 as did Spiderman. It seems to be worth it for Hollywood directors and producers to create sequels to movies that have been extremely successful at the box office.
However, the interesting thing is that James Cameron did not create sequels to either of his box office successes. Even though audiences may cry out for more, it may be better for a film to remain without sequels in order to not wear out its welcome. For all of the hype that Twilight delivered, not one of its three films managed to make it into the top 10 movies of all time. It did manage to land in the top 40; however, it didn't match the success the media portrayed it to be.
After looking at the top movies ever, it is evident that family films with a bit of action, adventure, and a bit of humor tend to be the most successful types of movies to create and some sci-fi in the film doesn't hurt either.