Unpublished data exchange
You don't say if you have legal copies of those films, but since you effectively gave her the contents of your drive you gave her your data...


  "I am still hoping it is safe"?


Safe from what? could she use the material - not sure, this may be a legal issue - how would she reference it? Would this be plagiarism as you effectively gave her your data.


  I did not mind this but later I realised she was having fun at my expense


Perhaps you should contact her and ask her to delete that material...
Good luck.