Can anyone help me fix this lightbox issue?

Hey guys! Sorry if I keep bothering, but I can't help but notice that there's a huge issue in playing videos on a lightbox on multiple templates! Here's the video I made showing you how the issue I found!
Can any of you guys help?

http://youtu.be/yAdpSl-q0bA

The quick way to fix this is to enable override.css and add this

#sbox-overlay {
width: 100% !important;
}