How do you view a replay on Halo 3 in multiplayer?

[dial6titan]

im playing and i get a sweet kill, and i heard about the replay feature but do not have any idea on how to view or make or save it. help?

 

[Brownies yum 123]

go to theatre look at vid in films once in it press X and it will bring up a small menu in the bottom right of your screen and press record to record a vid

 

[Phoenix Souvenir]

Select Theatre from the main menu.