That is a huge drop from 2005's "The Lion, the Witch and the Wardrobe" with more than $65 million and 2008's "Prince Caspian" with $55 million.
Johnny Depp and Angelina Jolie's romantic thriller "The Tourist" opened in second place with $17 million.
Walt Disney's "Tangled" took third place with $14.6 million.
"Harry Potter and the Deathly Hallows: Part 1," was fourth, and "Unstoppable" rounded out the top five.
1. "The Chronicles of Narnia: The Voyage of the Dawn Treader," $24.5 million.
2. "The Tourist," $17 million.
3. "Tangled," $14.6 million.
4. "Harry Potter and the Deathly Hallows: Part 1," $8.5 million.
5. "Unstoppable," $3.8 million.
6. "Black Swan," $3.3 million.
7. "Burlesque," $3.2 million.
8. "Love & Other Drugs," $3 million.
9. "Due Date," $2.55 million.
10. "Megamind," $2.5 million.
The Associated Press contributed to this report.