The reign of its amusing but hardly revelatory teaser trailer was brief, but the full-length trailer for Tropic Thunder has gone online, and it’s a nice, streamlined thing; it sells the movie’s concept with grace and a muscular confidence, plus features a crazy-eyed Nick Nolte to boot. Particularly amusing, for those perhaps worrying about it, are the segments selling Robert Downey, Jr. as a hotheaded Australian actor who undergoes a “controversial procedure” (i.e., he darkens the pigment of his skin) to play an African-American member of the film’s “band of brothers” platoon. Downey, to one of his fellow soldiers, after being called out for quoting the theme song to The Jeffersons: “Just because it’s a theme song doesn’t make it not true…”