Attaching, altering the video

I found it really hard to attach and then use it as a video as for some reason, after I have attached the elements, the video would distort and would change the whole video, so instead I used the elements without attaching it making it as unobvious as posssible.
Using attach for little minor things like if I wanted to have the same texture I could just easily attached the elements and could put the same testure on all.