Solved / Need Help about effect

[walker™]

Description of the problem:  i want this effect please 
Photos: 
Other details: give me link to download it or any tutorial 

[Flenn.]

you can do it in 2 easy steps

first : open your gif , add your text and move it down of the layers .

second : select all the gif's layers and , right click and choose create clipping mask and save it as a gif

the result : 

T/C