-With “Avatar” James Cameron has turned one man’s dream of the movies into a trippy joy ride about the end of life — our moviegoing life included — as we know it. Several decades in the dreaming and more than four years in the actual making, the movie is a song to the natural world that was largely produced with software, an Emersonian exploration of the invisible world of the spirit filled with Cameronian rock ’em, sock ’em pulpy action. Created to conquer hearts, minds, history books and box-office records, the movie — one of the most expensive in history, the jungle drums thump — is glorious and goofy and blissfully deranged.