The year 2009 saw the release of many films. Seven made the top 50 list of highest-grossing films, and the Academy of Motion Picture Arts and Sciences announced that as of this year, their Best Picture category would consist of ten nominees, rather than five (the first time since the 1943 awards).

These are the top grossing films that were released in 2009. The top ten films of 2009, by worldwide gross in United States dollars, as well as the United States, Canada, United Kingdom, and Australia grosses, are as follows:

Avatar has grossed over $2.7 billion, making it the highest-grossing film in history, as well as one of two films in history to gross $2 billion (the second being Titanic, also by James Cameron, during its 3D re-release) in box office receipts and the first film to gross over $700 million in the US and Canada. 7 films (Harry Potter and the Half-Blood Prince, Ice Age: Dawn of the Dinosaurs, Transformers: Revenge of the Fallen, 2012, Up and New Moon) are among the top 50, making this the year with the highest representatives in the top 50 highest-grossing films of all time.