Here's how I am going to do this post. First I will talk about the Top 10 biggest movies of the year in the U.S., followed by globally. Please note these grosses include gross data through December 31.
Starting with the U.S. (domestically):
#10: The Fate of the Furious (Universal)
Opening Weekend: $98,800,000
Domestic Final Gross: $225,800,000
#9: Logan (Fox)
Opening Weekend: $88,400,000
Domestic Final Gross: $226,300,000
#8: Despicable Me 3 (Universal)
Opening Weekend: $72,400,000
Domestic Final Gross: $264,600,000
#7: Thor: Ragnarok (Marvel/Disney)
Opening Weekend: $122,700,000
Domestic Gross (as of 12/31): $311,200,000
#6: It (Warner Bros.)
Opening Weekend: $123,400,000
Domestic Final Gross: $327,500,000
#5: Spider-Man: Homecoming (Sony/Marvel)
Opening Weekend: $117,000,000
Domestic Final Gross: $334,200,000
#4: Guardians of the Galaxy - Volume 2 (Marvel/Disney)
Opening Weekend: $146,500,000
Domestic Final Gross: $389,800,000 (#29 highest-grossing movie of all-time)
#3: Wonder Woman (Warner Bros.)
Opening Weekend: $103,300,000
Domestic Final Gross: $412,600,000 (#21 highest-grossing movie of all-time)
#2: Beauty and the Beast (Disney)
Opening Weekend: $174,800,000
Domestic Final Gross: $504,000,000 (9th highest-grossing movie of all-time unadjusted)
#1: Star Wars: The Last Jedi (Disney/Lucasfilm)
Opening Weekend: $220,000,000
Domestic Gross (as of 12/31): $517,400,000
And now, the Top 10 biggest movies of the year worldwide (through 12/31):
#1: Beauty and the Beast ($1.263 billion, 10th-biggest movie of all-time)
#2: Fate of the Furious ($1.235 billion, 11th-biggest movie of all-time)
#3: Star Wars: The Last Jedi ($1.040 billion so far)
#4: Despicable Me 3 ($1.033 billion so far, 4th-biggest animated movie of all-time)
#5: Spider-Man: Homecoming ($880.2 million)
#6: Wolf Warrior 2 ($870.3 million, first Chinese title to ever appear in worldwide Top 10)
#7: Guardians of the Galaxy - Volume 2 ($863.7 million)
#8: Thor: Ragnarok ($847 million so far)
#9: Wonder Woman ($821.8 million)
#10: Pirates of the Caribbean: Dead Man Tell No Tales ($794.9 million)
Here is how the studios ended up in 2017 (NOTE: the data I am reporting grosses only through 12/24):
#1: Disney/Buena Vista ($2.24 billion)
#2: Warner Bros. ($2.02 billion)
#3: Universal ($1.48 billion)
#4: Fox ($1.26 billion)
#5: Sony ($929 million, crossing $1 billion before the end of the year)
#6: Lionsgate ($878.3 million)
#7: Paramount ($519.5 million)