Hi Deepa,
LR supports *.swf, *.avi, *.mpg, *.mpeg, *.mp4 and *.wmv video file formats -- unfortunately it can't work with .mov files (at least right now). We are currently addressing this supported file format issue while working on the next version of LR, so do let us know if you find other problems.
I would advise that you convert your video file first to *.avi or *.swf, as these formats would most likely work properly in LR.
Sorry about the inconvenience, and thanks for letting us know about this problem!
Digg
