James Cameron only joined Twitter yesterday, but boy is he getting the hang of it quickly! First he explained his initial reluctance: “I never tweeted before because I’m a long winded blowhard, and they don’t allow enough characters.†Ha! Then he sent some cutesy tweets to Kim Kardashian, when she tweeted at him that she wanted to play a part in one of his movies: “Kim, you’re already in 3D! See you on #Sanctum 2.†Suddenly he realized how easily this whole tweeting thing came to him: “It’s easy. Short smartass answers have always been a specialty of mine,†he said. And finally, he started making deals with actresses: “Jess, we have to do another kick butt project together soon! @jessicaalba.†He’s a natural. [JimCameron/Twitter]