Crossword puzzle clue "these occur symbolically at this puzzle's six circled intersections"

These occur—symbolically—at this puzzle's six circled "intersections"

What the ten movie titles in this puzzle do at their intersections -- or a 2005 movie spelled out by those intersections

Gated intersections, briefly, and this puzzle's theme

Something needed to play the game depicted in this puzzle ... or a hint to the six circled answers

Poet whose classic work is hidden in this puzzle (see the circled squares of the completed the puzzle)

Campaign about which Rumsfeld said in 2003 "it could last six days, six weeks - I doubt six months"

Game symbolically represented by 30 puzzle entries

The middle of this puzzle's grid, symbolically