My phone turned off the whole recording and I can't get the video to play. How can I recover the sound on my video?

[AC Question]

my pho e turned off whole recording and i cant get the video to play

I recorded an event and my phone died before I was done.the file is there but says it can not play and the length of time is missing;it also took up 2Mb which is the only info I have on it but I can move it to my PC.

Is there anyway I can recover it ,it was a very special event.