Someone might need discount prescription glasses when examining box office returns this weekend after lofty expectations were brought low for two newcomers. The 3D animated “How To Train Your Dragon” feature won the weekend by far, hauling in $43.3 million domestically, but considering the flick cost $165 million to make and folks were hoping for at least a $60 million open, the studio now has reason to be nervous.

Worse off are the producers of “Hot Tub Time Machine.” Personally, I love the concept of the film, but with a production budget somewhere between $36 and $50 million (depending on who you ask), the film’s third-place, $13.6 million performance is less than inspiring.

Alice in Wonderland has lost some momentum as well, settling into the third spot at $17.3 million.

Behind those three, the Bounty Hunter made $12.4 million and Diary of a Wimpy Kid made an even $10 million to round out the top five. Behind the top 5, no film made more than $3.5 million.

Atom Eyogan’s erotic thriller, Chloe, opened on a paltry number of screens (about 350) and made $1.0 million, which isn’t a bad per-screen average but wasn’t stellar, either.

Coming up next weekend are the big-budget remake of Clash of the Titans, which ought to dominate, and a Tyler Perry film that should also do well, Why Did I Get Married, Too? Less is expected of the Miley Cyrus vehicle, The Last Song.