Has anyone lost movies in i-movie with OS X 10.10.3 update?

I updated my OS X software 10.10.3 about 2 weeks ago. At the same time I did a recovery update and a week later I did a the OS X supplement update.

Since that time I am unable to find 3 years of i-movie videos that were uploaded. I had 2 file name for i-movie....."i-movie" and "i-movie1". Everything from i-movie1 is missing. I back up, but am currently in process of trying to retrieve, but fearful I won't be successful. Is it possible that the software update deleted one of the file names? Any suggestions?