I assume netflix put it top of the list for everyone in their suggestions, I've never heard of it except for in 1 place, a thread where people with netflix say what film they just watched, in which it's very popular.

They have the data, they know who's popular, what genre is popular (brain dead action comedies), they specifically designed a film to appeal to the most netflix subscribers, and could easily get 1/3rd of their subscribers to watch it.