Gee, go figure. While they obviously all think Heath Ledger did a stellar job in his haunting performance, all of “The Dark Knight” cast and director Christopher Nolan are cautious not to make wild proclamations. Christian Bale in particular says keep your pants on, people. “”A lot of people talk about awards all the time, and it’s early days,” the Batman star told MTV. If you cycle through the video you can hear his thoughts, plus Maggie Gyllenhaal and Gary Oldman. When asked what he thinks about Ledger’s much-hyped posthumous chances at Oscar gold, the director Nolan was typically wary. “I have no idea.”