Hi Vincent and Blast
Thanks for your posts , they were very informative.
Going back to my first question I forgot to mention a point. When I apply the B&W filter my clip looks fine. But when I export the clip as a movie, the composition of the clip appears blotchy.
I am exporting it as Microsoft Avi and Millions of Color as option. Let me know incase there is a way to preview the same before exporting or correct the problem.
Regards,
Anand