I looked at Movie Entertainment Magazine which arrived this week. The "H" for HD movies has returned. Since some "major" movies were not listed in HD, I e-mailed my contact at Astral. He provided the following information.
Superman Returns - Will not be HD.
Talladega Nights will be HD - Is scheduled on June 23rd at 21:00 and midnight. It is also scheduled on June 27th at 21:00 and 02:00.
All The King's Men - We have an HD version however it is not scheduled on the HD channel until July.