<em> tags in node title

When I'm listing the gallery of attached images, <em> and </em> tags are added into the node title (see the attachment).
Tags are not added by the real node title, my translation or by Theme. Well, I suppose that it must be somewhere in "node images" code. But I can't find where it is.

Btw. Great module. I have been looking for something like that for 2 years.

And I'm sorry for my English. :-)