Old Man in White Robe Turns around and is Naked

[thecapt]

I'm trying to ID a weird 70's movie, but don't much to go on.  In this movie there is a hero who is trying to escape from a castle or something.  He might be trying to save a girl, but people in "barbarian-style" costumes are definitely trying to kill him.  Eventually he makes it out.

There is one scene where he sees this wise-looking old man with a beard across a canyon or something.  The man beckons for him to follow and then turns around and is butt-ass naked.  I don't think the hero follows.

Any ideas?

[Trevor]

Robert Clouse's GYMKATA.

[thecapt]

Wow that was fast.  Thanks.

[Trevor]

Wow that was fast.  Thanks.

No problem: Andrew has a great review of this classic film on this site.