Fellowship Block: Sets 1, 2, 3
Towers Block: Sets 4, 5, 6
Towers Standard: Sets 1, 2, 3, 4, 5, 6, with X-List
King Block: Sets 7, 8, 10
Movie Block: Sets 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, with X-List
War of the Ring Block: 11, 12, 13
Hunters Block: 15, 17, 18
Standard: 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, with X-List
Expanded: All sets, with X-list and R-List
Open: All sets, with R-List
Poorman's: Only Commons and Uncommons, pick any other block (so, you could say, poorman's movie or poorman's open, etc.)
Movie Block is my favorite block. I don't play anything beyond set 10, but Movie Block is how the game stood when set 10 (the last movie-specific set) was released.
There may be some corrections here that need to be made past movie block. So thanks to anyone who sets me straight!
-wtk