Top 10 best movies of 2010 are Toy Story 3, The Social Network, Inception, How to Train Your Dragon, Black Swan, The Town, The Fighter, The Ghost Writer, Winter's Bone, Harry Potter and the Deathly Hallows Part1. 

1. Toy Story 3

Toy Story 3 is a 2010 American 3D computer-animated film and is the third in the installment of the 'Toy Story' series. Like all the films from the canon of Pixar, this film is a worthy conclusion of a trilogy with beautiful animation, brilliant vocal performances and a superbly crafted script. The film received 99 percent rotten approval rating from critics based on 247 reviews collected by Rotten Tomatoes and an average score of 8.8/10. The film grossed over $1 billion worldwide and is the 5th highest-grossing film worldwide of all time.

2. The Social Network

The Social Network is a 2010 drama film about the founding of the social networking website Facebook and the resulting lawsuits. David Fincher and screenwriter Aaron Sorkin’s turned a profile of Facebook founder Mark Zuckerberg into a brilliant film. The film received 97 percent rotten approval rating from critics based on 258 reviews collected by Rotten Tomatoes and an average score of 9/10.

3. Inception

Inception is an American science fiction and psychological thriller film about corporate raiders invading other people’s dreams which was written, produced, and directed by Christopher Nolan. The summer blockbuster is a mind-bending thriller featured a complicated, fascinating plot and stunning action scenes. The film also taps into psychological phenomena like false memories and the introspection illusion. The film received 87 percent rotten approval rating from critics based on 272 reviews collected by Rotten Tomatoes and an average score of 8/10.

4. How to Train Your Dragon

How to Train Your Dragon is a 2010 computer-animated fantasy film based on the 2003 book of the same name How to Train Your Dragon. It was directed by Chris Sanders and Dean DeBlois and produced by DreamWorks Animation. The story plots a hapless young Viking who aspires to hunt dragons becomes the unlikely friend of a young dragon himself, and learns there may be more to the creatures than he assumed. The film grossed just under half a billion dollars and become DreamWorks Animation's fifth most successful film in the United States.

5. Black Swan

Black Swan is a 2010 American psychological thriller film features a heart-breaking, Oscar-nomination worthy performance by Natalie Portman and directed by Darren Aronofsky. The film plots about a ballet dancer wins the lead in Swan Lake is perfect for the role of the delicate White Swan, but slowly looses her mind as she becomes more and more like the evil twin sister of the White Swan, the Black Swan. The film received 87 percent rotten approval rating from critics based on 198 reviews collected by Rotten Tomatoes and an average score of 8.2/10.

6. The Town

The Town is a 2010 American crime film starring, co-written and directed by Ben Affleck that is adapted from Chuck Hogan's novel Prince of Thieves. The film received 94 percent rotten approval rating from critics based on 201 reviews collected by Rotten Tomatoes and an average score of 7.7/10.

7. The Fighter

The Fighter is a 2010 biographical sports film directed by David O. Russell. The film plots on the life of professional boxer Irish Micky Ward (Wahlberg) and his older half-brother Dicky Eklund (Bale). The film received 89 percent rotten approval rating from critics based on 163 reviews collected by Rotten Tomatoes and an average score of 7.9/10.

8. The Ghost Writer

The Ghost Writer is a 2010 political thriller film Based on Robert Harris' novel The Ghost. The film was directed by Roman Polanski and describes the tale of a ghostwriter hired to complete the memoirs of a former British prime minister. The film received 83 percent rotten approval rating from critics based on 187 reviews collected by Rotten Tomatoes and an average score of 7.4/10.

9. Winter’s Bone

Winter's Bone is a 2010 drama film written and directed by Debra Granik. The film is an adaption of Daniel Woodrell's 2006 novel of Winter’s Bone. The film received 94 percent rotten approval rating from critics based on 143 reviews collected by Rotten Tomatoes and an average score of 8/10.

10. Harry Potter and the Deathly Hallows Part1

Harry Potter and the Deathly Hallows Part1 is the first part of the last chapter in the Harry Potter saga directed by David Yates. The story following Harry Potter on a quest to find and destroy Lord Voldemort's secret to immortality – the Horcruxes. The film received 78 percent rotten approval rating from critics based on 237 reviews collected by Rotten Tomatoes and an average score of 7.1/10.