Paramount Pictures and Warner Bros. are currently battling it out over booking 3-D screens for their upcoming tentpole releases, the LA Times is reporting. Paramount Pictures is going through possibly extreme measures to get their animated How to Train Your Dragon in 3-D theaters, to the point where they’re even threatening some venues that they won’t submit 2D prints of the film to their screens if they don’t show it in 3-D as well. Its also been reported that DreamWorks honcho Jeffery Katzenberg has emailed a Warner Bros. executive with an angry message, furious over the studio’s last minute decision to convert their Clash of the Titans remake into 3-D and to release it just one week after Dragon. Meanwhile, the Walt Disney Company is trying to keep some 3-D screens open for their blockbuster Alice in Wonderland, which has grossed more than $250 million to date.