HBO’s ‘Last Days’ goes long

Van Sant pic makes Landmark debut

“I think this is the first time we’ve ever asked a director to make a film longer,” mused HBO Films honcho Colin Callender at the Tuesday preem of indie auteur Gus Van Sant’s “Last Days.”

Party for the pic — inspired by the life and death of alt-rock icon Kurt Cobain — drew an appropriately grungy crowd to Landmark’s Sunshine Cinemas, where “Days” star Michael Pitt donned a seemingly ancient, ripped undershirt to walk the red carpet.

After-fete was thrown at Lower East Side club Pianos, where Bob Berney, head of the new HBO/New Line’s distrib banner Picturehouse, rubbed elbows with Van Sant, Sonic Youth’s Kim Gordon and Thurston Moore and Sean Lennon.