[Coverbee]

Press the Shift-key while dragging the mask..

Good luck

[Coverbee]

Oldie but very goodie
Great tutorial by Mark Simpson
Hope this might help you…

https://forums.creativecow.net/cgi-bin/page_wrapper.cgi?forumid=2&page=https://www.creativecow.net/articles/simpson_mark/text_shatter1/index.html

[Coverbee]

You can make a curtain effect with standard fractal noise.

Add a new solid to your comp, make it black.
Go to : Effect>Noise and Grain>Fractal Noise.
Change the transformation settings to : Scale height 4000 ; Scale Width 100 (approximately)
Set a keyframe for the Evolution. At the end of the time line change the evolution value to -2
Now you should have a moving curtain….

Use a clororam preset to add some colour..

Good Luck

[Coverbee]

In case you are looking for an old fotograph look, try this one…

Make sure your picture is smaller than the Comp.
Desaturate it, make it black and white…
With layer selected make rectangular mask around the picture (by dubbelclicking the rectangular mask-tool)
Use this mask for your stroke around the picture (Effect>Render>Stoke)
Make the stroke fairly large around 15. Choose the rectangular mask for the path.
Then go to Effect>Stylize> Roughen Edges
Edge Type : Roughen
Border : 12

It’s nice when you like nice….

Goos Luck