AceShowbiz -

Marvel scores big with Shane Black-directed "Iron Man 3". According to BoxOfficeMojo, the Robert Downey Jr.-led superhero movie becomes the fifth biggest-grossing movie of all time with $1.18 billion behind "Harry Potter and the Deathly Hallows: Part II".

It becomes the second Marvel movie to enter the coveted top 10 list, joining "The Avengers" which also stars Downey Jr. among other A-list actors. "Avengers" sits on the third place of the chart with $1.51 billion since being released in the summer of 2012.

The first and second spots, meanwhile, are occupied by two James Cameron blockbuster films. The groundbreaking 3-D movie "Avatar" takes the top spot with a whopping $2.78 billion, and the classic "Titanic" follows with $2.18 billion.

Top 10 of highest-grossing movies of all time:

1. "Avatar" - $2.78 billion
2. "Titanic" - $2.18 billion
3. "The Avengers" - $1.51 billion
4. "Harry Potter and the Deathly Hallows: Part II" - $1.34 billion
5. "Iron Man 3" - $1.18 billion
6. "Transformers: Dark of the Moon" - $1.12 billion
7. "The Lord of the Rings: The Return of the King" - $1.11 billion
8. "Skyfall" - $1.10 billion
9. "The Dark Knight Rises" - $1.08 billion
10. "Pirates of the Caribbean: Dead Man's Chest" - $1.06 billion