Thursday Morning Riddle

From a point, I set out in a single direction;
If you meet me at sea, you just might need protection;
I’m the film of a man who engendered affection;
And when X marks the spot, I’m a deeper inspection.

Who am I?

UPDATE: Riddle solved by Andrew. See comments for answer.

2 Responses to “Thursday Morning Riddle”

  1. Andrew Says:

    Ray?

  2. Bill Says:

    RAY is correct! Way to go, Andrew.

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