Conversation so far:
What was the movie Titanic about?
The movie Titanic is an epic film about the RMS Titanic which sank in 1912 after striking an iceberg
Who starred in the movie Titanic?
Leonardo DiCaprio starred in the movie Titanic
Who else starred in the movie Titanic?
Kate Winslet also starred in the movie Titanic
Any other notable names in the movie Titanic?
The supporting cast included Billy Zane, Kathy Bates, Frances Fisher, Gloria Stuart, Bernard Hill, Jonathan Hyde, Victor Garber, Danny Nucci, David Warner and Bill Paxton
When was Titanic released?
After months of delay, Titanic premiered on December 19, 1997
Was Titanic successful?
Titanic received strong critical acclaim and became the highest-grossing film of all time worldwide in 1998

Question: How much money did it earn?
Self-contained rewrite: How much money did Titanic earn?