# Masking a movie clip

**URL:** <https://forum.kirupa.com/t/masking-a-movie-clip/114893>\
**Category:** Uncategorized\
**Created:** [July 2, 2004, 8:14pm UTC](https://forum.kirupa.com/t/masking-a-movie-clip/114893 "2004-07-02T20:14:00Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![jrw](https://avatars.discourse-cdn.com/v4/letter/j/f05b48/32.png) [@jrw](https://forum.kirupa.com/u/jrw)\
**Post date:** [July 2, 2004, 8:14pm UTC](https://forum.kirupa.com/t/masking-a-movie-clip/114893/1 "2004-07-02T20:14:00Z")

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Is there some trick to masking a movie clip? I have two movie clips that I am placing on the same layer and duplicating about 20 times. One is a ball that vibrates and I can mask that one with no problem. The other movie clip is a ball that bounces around the screen. No matter where I place it, this bouncing ball will not get masked.

I have no clue what is going on. Help would be much appreciated!

JRW