Movie genres that make the most money

When you think of the most profitable movies at the box office, you probably think of the Hollywood blockbusters — films that grab headlines because of their huge budgets and equally huge profits, like "Avatar," "Titanic" and "Pirates of the Caribbean." However, when it comes down to it, these aren't the movies that bring in the most return on investment for their respective film studios.

Most of the time, movies with smaller budgets provide studios with the most bang for their buck, if the film reaches a profitable state. We'll take a look at the top 20 movies that have provided the biggest return on investment (ROI) (according to industry info website, The Numbers), and the ones that have been the biggest Hollywood flops, to find the movie genre that consistently provides the best returns. After the dollar value of the international gross is divided by the movie budget, this value is divided by two to obtain the percentage return; this extra step is conducted in order to determine the approximate funds that are returned to the movie studio. It should be noted that The Numbers' statistics are rough estimates of budget and box-office income, and DVD sales and rental income are not included.