How to Train Your Dragon came out March 26th and Clash of the Titans hit theaters April 2.

FORBES: Where is This Year's 'Alice in Wonderland'?

Next weekend the Warner Bros. epic Clash of the Titans will take over a portion of the screens in the roughly 2, 300 theaters that have 3-D capabilities.

FORBES: Magazine Article

Now studios are scrambling to convert big budget 2-D films, like Clash of the Titans and the next Harry Potter film, into 3-D.

FORBES: 3-D Boom Powers Hollywood To Box Office Record