The 10 most popular movies in 2009 are the highest grossing from that year. The diverse list has a wide range of genres including, comedy, drama, family, Sc-Fi, and action. Some of the 10 most popular movies in 2009 are based from books, while others are sequels to other popular films. The wide scope of movie plots ensures no two movies from the list are similar.

  1. "Transformers: Revenge of the Fallen" Topping the 10 most popular movies in 2009 is the second film in the "Transformers" installment. It takes place two years after the first film, and revolves around Sam and Mikaela saving the Transformers from being banished on earth. The popular 2009 movie grossed $402 million domestically at the box office.

  2. "Avatar" The 2009 popular movie was written and directed by James Cameron. The science fiction movie is set in the future at planet Pandora where there is a precious mineral. The plot revolves around an ex-marine trying to save the planets inhabitants from being banished off the planet.

  3. "Harry Potter and the Half-Blood Prince" The sixth installment of the "Harry Potter" franchise was one of the most popular movies in 2009. The film follows Potter and his friends through their sixth year at Hogwarts School of Witchcraft and Wizardry. The movie has a darker tone as Potter gets groomed to battle Voldemort.

  4. "Up" One of the 10 most popular movies in 2009 because it's a film all ages can enjoy. The animated movie is about a crabby older man named Carl forming an unlikely bond with a young boy named Russell. It's a great imaginative tale that will warm your heart.

  5. "The Twilight Saga: New Moon" Stephenie Meyer's book series turned into a movie franchise, and the second installment became the fifth most popular movie in 2009. The plot thickens for Bella and Edward as he flees the country to ensure a normal life for her. Bella gets drawn into the world of werewolves, which introduces new characters and new species.

  6. "The Hangover" Since "The Hangover" became one of the 10 most popular movies in 2009, a sequel is being created. The comedy is about four friends enduring a wild bachelor party in Vegas. The boys piece their drug induced night together to discover they broke into Mike Tyson's house, acquired a tiger, and four nasty hangovers. The entire movie is hilarious and one you can watch more than once.

  7. "Star Trek" In 2009 "Star Trek" became the seventh most popular movie by grossing $257 million in ticket sales. The action, adventure movie is based on the original "Star Trek" characters earlier careers. The popular enterprise officers Kirk, Spock, and Scotty are back, but re-cast with younger actors.

  8. "The Blind Side" The plot is based on the true story about NFL player Michael Oher's upbringing. Upper class family the Touhys took Oher into their home once finding out his mother was a drug addict. The movies popularity increased when Sandra Bullock won an Oscar for her portrayal of Oher's adoptive mother.

  9. "Monsters vs. Aliens" The cute 2009 animated family movie is about a girl getting hit with meteor gunk, and growing enormous in size. The military capture Susan, and throw her into a compound with other monsters. Susan and the other monsters pull together in order to make an escape. It's a great movie with heart and humor.

  10. "Ice Age: Dawn of the Dinosaurs" The tenth most popular movie in 2009 is the third installment to the "Ice Age" franchise. Sid the sloth causes mischief by stealing dinosaur eggs to create a family, while mammoth Manny prepares to become a father. The squirrel is even back looking for his precious acorn. A family comedy for all ages, that will keep everyone laughing.