One of the most well-known lists of popular movies is the IMDb Top 250, which is voted on by the site's users. The BFI's Sight and Sound poll, held once a decade, is a source of popular movies as well.
The IMDb Top 250 is a list of 250 films, sorted by their rating given by users of the site. As the list is generated by public opinion, it is often used as a way to gauge the favorite films of the general public.
Another list of popular movies is the BFI Sight and Sound poll, held every ten years, most recently in 2012. The Sight and Sound poll calculates the votes of respected film critics and directors to rank the greatest films of all time. Many of the films on the list overlap with the IMDb Top 250, though it also features many films more popular with film buffs than the general public.