Live action stock footage

Hey Guys, So i’m just wondering I’ve seen this stock footage of this girl on a microphone being used in many various projects for previews. Here are a couple for example: http://videohive.net/item/lines-light-transitions-pack-v2-/3437830?WT.ac=new_item&WT.seg_1=new_item&WT.z_author=sanyo & http://videohive.net/item/fashion-promo/95063?WT.ac=search_thumb&WT.seg_1=search_thumb&WT.z_author=AlexZlatev

Is there a certain link you can access royalty free footage for envato authors or where abouts can I access this footage so I can use to put live action thumbnails in my previews without having to use the consent release form? Thanks in advance!