mp3 clip for my movie

in my movie i have used a mp3 clip from a composer from a tv series, Do i have to be worried about copyright issues if it is just a small clip?

i doubt seriously anyone will care.

I agree with Loh Tek,
I think that as long as you dont
have it as a free download and distribute it
to all you visitors, you should be ok.
Maybe giving proper credits for the author
of the song/melody would be good too.

I'm currently working on a site that will have
such clips and also full songs embed into flash
and password protected so they cant copy them
to ipod or something like that hahah..