BLOCKBUSTER is to enter into administration for a second time, less than seven months after teetering on the brink of collapse. Gordon Brothers, the private-equity group that bought the DVD rental chain in March, said a turnaround plan had failed and that it had filed an intention to appoint administrators, believed to be Moorfields Corporate Recovery. The group had 528 stores and 4,190 staff when it first fell into administration in January. It currently has 264 stores and 2,000 employees, all of which could be at risk. Gordon Brothers said it hopes to find a buyer for the group.