Strange iTunes Error Message

Hey all,

I have a slight annoyance with iTunes that keeps happening. While open, i will get a message that says "The movie file [insert movie title] cannot be played because it cannot be found."

I have two options, i can either search for it, or I can hit cancel. If I hit cancel, it just does the same thing again a little while later, and If i hit Search it tries to search but it doesnt come up with anything (duh) cause the file cannot be found. Sounds redundant I know.

Anyone have any ideas of what to do to get this annoying message to go away?

Oh yeah, also this is the new iTunes, not V. 6. The problem has only occured with v. 7.

Thanks in advance.