* Different sources use different metrics: Some sources consider total box office revenue as the primary measure, while others focus on estimated viewership.
* Global versus regional viewership: Some movies dominate certain regions but not others.
* Availability of data: Accurate viewership data isn't always available, especially for older films or films distributed in non-traditional ways.
* Definition of "movie": Do we include animated films, documentaries, or just live-action feature films?
However, here are some movies often cited as contenders for the most watched of all time:
* Avatar (2009): Holds the record for highest-grossing movie worldwide, with over $2.9 billion in box office revenue. It is estimated to have been seen by over 3 billion people.
* Titanic (1997): Holds the record for highest-grossing movie in the US and Canada, with over $659 million in box office revenue. It is estimated to have been seen by over 2 billion people.
* The Shawshank Redemption (1994): While not a box office blockbuster, it has gained immense popularity over the years through home video releases and streaming platforms.
* Gone with the Wind (1939): A classic film that has been re-released and seen by millions worldwide.
* Star Wars: Episode IV - A New Hope (1977): A cultural phenomenon that has captivated audiences for generations.
It's important to note that these estimates are based on various sources and may vary depending on how viewership is defined. Ultimately, it's difficult to say definitively which movie is the most watched of all time.