Button Component Questions...Please Help

I am looking to create a button with a component that changes the text to whatever I choose as well as a button that can play whatever attachMovie “movie” I decide to define onRelease. Is there an onRelease variable I can select and how would I go about defining my component variables to do this. I know how to get the text to change per button but am clueless as to do the latter.

THANK YOU ALL in advance,

Evan