What do you know, I Am Number Four is actually No. 2, and Mr. Liam Neeson topped the box office charts with his new (known) thriller Unknown. Both films had a strong performance during this President’s Day weekend. The sci-fi flick grossed $19.5 million, while Unknown, which also stars Diane Kruger and January Jones, grossed $21, 770,000 million — close, indeed. Also new this weekend was Big Mommas: Like Father, Like Son, which came did well despite coming in at No. 5, after Gnomeo and Juliet and Just Go With It.

Check out the weekend box office below…

  1. Unknown | NEW | Warner Brothers | Weekend Gross $21,770,000| Average Per Theater $7,154 | Total Gross $21,770,000 | Film’s Budget – $30 | Week 1
  2. I Am Number Four | NEW | Buena Vista | Weekend Gross $19,500,000 | Average Per Theater $6,183 | Total Gross $19,500,000 | Film’s Budget – $60 | Week 1
  3. Gnomeo and Juliet | Last Week #3 | Buena Vista | Weekend Gross $19,400,000| Average Per Theater $6,437 | Total Gross $50,421,000 | Film’s Budget – N/A | Week 2
  4. Just Go With It | Last Week #1 | Sony | Weekend Gross $18,200,000 | Average Per Theater $5,130 | Total Gross $60,756,000 | Film’s Budget – $80 | Week 2
  5. Big Mommas: Like Father, Like Son | NEW | Fox | Weekend Gross $17,000,000 | Average Per Theater $6,025 | Total Gross $17,000,000 | Film’s Budget – $32 | Week 1
  6. Justin Bieber: Never Say Never | Last Week #2 | Paramount | Weekend Gross $13,600,000 | Average Per Theater $4,362 | Total Gross $48,437,000 | Film’s Budget – $13 | Week 2
  7. The King’s Speech | Last Week #6 | Weinstein | Weekend Gross $6,566,000 | Average Per Theater $3,148 | Total Gross $103,278,000 | Film’s Budget – $15 | Week 13
  8. The Roommate | Last Week #5 | ScreenGems | Weekend Gross $4,100,000| Average Per Theater $1,898 | Total Gross $32,694,000 | Film’s Budget – $16 | Week 3
  9. The Eagle | Last Week #4 |Focus Features | Weekend Gross $3,559,000| Average Per Theater $1,550 | Total Gross $15,041,000 | Film’s Budget – $25 | Week 2
  10. No Strings Attached | Last Week #7 | Paramount | Weekend Gross $3,120,000 | Average Per Theater $1,587 | Total Gross $66,033,000 | Film’s Budget – $25 | Week 5

The Justin Bieber documentary took a big fall on its second week. Maybe people weren’t too crazy about the Biebz after that Glee episode? Or maybe it’s just too much Beiber at once?

What did you see this weekend?