UPDATE 2-Blockbuster misses another bond payment

* Company faces Sept. 30 deadline to resolve debt

* Misses second bond payment (Adds background and stock price in paragraphs 5 to 8)

WILMINGTON, Del., Sept 2 (Reuters) - Ailing movie rental chain Blockbuster Inc BLOKA.PK said on Thursday it missed another interest payment on its bonds, this time to holders of the company's junior notes.

The company said in a regulatory filing that it is prevented from making the semi-annual payment to junior noteholders because it still has not made a payment to senior bondholders that was due in July.

The once-dominant video rental chain said last month it might have to liquidate if it cannot restructure its debt, which totals more than $1 billion.

Blockbuster signed a forbearance agreement last month with creditors representing about 70 percent of its senior secured notes, giving the company until the end of September to reach an agreement.

Analysts have said the company's best bet may be filing a prepackaged bankruptcy.

Blockbuster's market share has melted away to Netflix Inc (NFLX.O) and digital delivery of movies.

Rival rental chain Movie Gallery Inc MVGRQ.PK filed for bankruptcy for the second time in three years in February. In July, it abandoned its plan to reorganize and is now in the process of liquidating its more than 2,000 stores.

Blockbuster's stock was down nearly 12 percent at 6.6 cents in pink sheet trading on Thursday afternoon.

A Blockbuster spokeswoman did not immediately return a call for comment. (Reporting by Tom Hals; Additional reporting by Alex Dobuzinskis in Los Angeles; Editing by Todd Eastham and Jan Paschal)