Here's the tally.
Some things to note:
24 movies grossed over $100 million. True Grit will make it 25.
Of those 24, 6 were animated. 10 of the 20 were G or PG. 8 were PG-13. Two were R.
The highest-grossing R-rated movie of 2010 was Shutter Island at #17. Jackass 3-D is #20 and will likely be bumped out by Little Fockers and/or Tron Legacy in the next week or two.
7 of the top 10 grossers were remakes or sequels. The other three were Inception, Despicable Me and How to Train Your Dragon. The latter two now have sequels in the works.
In 2009, 6 of the top 10 were remakes or sequels. The other four were Avatar, Up, The Hangover and The Blind Side. Only one R-rated movie (Hangover) made the top 20.
In 2008, 5 of the top 10 were remakes or sequels. The other five were Iron Man, Hancock, Wall-E, Kung Fu Panda and Horton Hears a Who. Four of the top 20 were rated R. Sex & the City (#11), Gran Torino (#12), Slumdog Millionaire (#16), and Wanted (#18).