"Elysium," starring Matt Damon, was No. 1 this weekend despite average reviews, as four new films hit theaters. "We're The Millers" surprised critics by taking the No. 2 spot at the box office.

Neil Blomkamp's follow up to "District 9" stars Matt Damon and Jodie Foster, and earned $30.4 million this weekend. E! News reports that this figure seemed to meet analysts' expectations.

"We're the Millers" fell behind Elysium at $26.6 million. The comedy stars Jennifer Aniston and Jason Sudeikis. This surprised analysts, E! News reports, as they expected the 3D animated movie "Planes" to take the second spot in the box office this weekend.

However, "Planes" came up behind "We're The Millers" with $22.5 million. "Percy Jackson: Sea of Monsters" nabbed $14.6 million for the fourth spot.

The Sony film "Elysium" cost $115 million to make, meaning the movie will need to generate good word-of-mouth if it is to become a financial success, The Los Angeles Times reports. "Elysium" is about a man desperate to get to a space station above Earth.

The movie has earned positive reviews from critics, but a market research firm CinemaScore reported this weekend's audience assigned the film an average grade of B. The picture attracted more men than women, as 61% of the crowd was male; roughly 52% of the audience was under the age of 30. The Los Angeles Times reports.

"We're The Millers" was an inexpensive film to make, and cost just $37 million for Warner Bros. and its New Line Cinema label. Critics were not fans of the movie, which is about a drug dealer (Sudeikis) who hires a stripper (Aniston) and two teenagers to play his family as they head to Mexico on a road trip to smuggle weed from the country. However, fans gave the film an average of grade A-.

"We're The Millers" attracted both genders almost equally, but appealed to a slightly older crowd, as 61% of the audience was over the age of 25.

"Reviews aren't really the driving force when it comes to comedies these days," Warner Bros.' president of domestic distribution Dan Fellman said.