It isn't just that the movie cannot enter Moon's thoughts.

The idea that when he saw her she could not be his never entered his thoughts.

"We did not know he could enter our thoughts."

She felt a third mind enter her thoughts, quite separate from Thorn's.

A curious image entered his thoughts, burning like glowing metal.

He tried to keep Della from entering his thoughts but couldn't.

"You threatened terrible punishment should such violence ever again enter our thoughts."

In fact I cannot recall the matter having even entered my thoughts.

"It's good to see you have something pleasant to think about, my dear," a familiar voice entered her thoughts.

"It hasn't even entered my thoughts that we're going down there and going to lose."