In a surprise box-office finish, "The Smurfs" tied with sci-fi western mashup "Cowboys & Aliens", taking in an estimated $36.2 million in ticket sales. Another wide-release, the rom-com "Crazy, Stupid, Love", opened in fifth place, taking in $19.3 million.

Last week's no. 1 film, "Captain America: The First Avenger", took a big 62% drop in its second week in theaters, taking in $24.9 million.

Here's how they stacked up:

"Cowboys & Aliens" $36.2 million
"The Smurfs" $36.2 million
"Captain America: The First Avenger" $24.9 million
"Harry Potter and the Deathly Hallows, Part 2" $21.9 million
"Crazy, Stupid, Love" $19.3 million
"Friends With Benefits" $9.3 million
"Horrible Bosses" $7.1 million
"Transformers: Dark of the Moon" $6 million
"Zookeeper" $4.2 million
"Cars 2" $2.3 million