This one’s been expected and rumored for a long time. Now it’s official: Blockbuster has initiated “pre-arranged” chapter 11 proceedings. Under the plan, Blockbuster’s debt would be reduced from $1 billion to about $100 million when implemented. The press release states that Blockbuster is currently evaluating its US store portfolio as part of the recapitalization process. For the time being, all 3,000 stores will remain open. However, we’ve been told by a trusted tipster that up to 1,000 could be shed before things are said and done. Now make no mistake, Blockbuster is still open and wants you to know that it’s business as usual during the restructuring — the details of which you can read in the press release after the break.