censor

I want to censor some part of a movie so that I can see it comfortably with my parents. I know it can be done with adobe premiere but It will take a lot of time to re-encode the movie which I do not want to do. I want an easy alternative like. show blank screen for a specific given time...

My friend changed his video RAM allocated for his onboard graphics card to 0. Now the monitor is not starting up. (I guess his whole computer isn't). Anyway, how should I resolve this problem? will removing the CMOS censor chip reset the BIOS? Also, if I want to by a new battery for the board...