The “Hunger Games” was released three weeks ago, but that hasn’t stopped fans from checking out the movie in large numbers.

According to estimates, “Hunger Games” earned $33.5 million this past weekend, passing the $300 million mark, and beating out American Pie franchise movie “American Reunion” AND the 3D re-release of James Cameron’s “Titanic,” which each earned $21.5 million and $17.4 million respectively.

MTV News reported:

“The Hunger Games” ranked right behind “Avatar” in the all-time list of non-sequels to cross the $300 million mark in the shortest amount of time.

Its estimated $302.8 million in North American receipts is more than the final totals of most of the “Harry Potter” movies and all of the entries in the “Twilight” series. Box-office prognosticators have estimated that “Games,” based on the popular young adult novel, will eventually earn at least $350 million.

The fourth theatrically released “American Pie” movie, which followed 2003’s “American Wedding” and a string of direct-to-DVD “American Pie Presents” spinoffs, did poorly relative to other entries. The $21.5 million earned by “American Reunion” was much lower than the opening weekends for “American Pie 2” ($45.1 million) and “Wedding” ($33.4 million).

Only the original “Pie” earned a “fresh” rating on film-review aggregator site Rotten Tomatoes; “Reunion” is the worst reviewed of the series. “There are almost no laughs, save what [Seann William] Scott valiantly squeezes out of Stifler’s antics,” wrote the Wrap’s Alonso Duralde. “The entire film is a mistake,” wrote the San Francisco Chronicle’s Amy Biancolli.

“American Reunion” did manage to land the highest Easter weekend opening for an R-rated film in several years and also collected an impressive amount overseas, where it opened in 28 countries. The film’s $19.3 million abroad was more than “American Wedding” made nine years ago.

“Titanic” is the second-highest-grossing film of all time, behind “Avatar.” Both, of course, were directed by James Cameron, who personally oversaw the 3-D conversion of the new theatrical re-release.

The opening weekend for “Titanic 3D” was lower than that of other recent 3-D re-releases, including “Star Wars: Episode I – The Phantom Menace” as well as Disney’s “The Lion King” and “Beauty and the Beast.”

Have you seen “The Hunger Games” yet? If so … what did you think?