Video Associating

You should be able to do this yourself.
 The way to tag  Trailer (Alien: Isolation) is to start on that page.

In the list under Frequently Asked Questions click the button beside How do I report video problems?
In the description that opens, click on the text link suggest corrections for IMDb title, series or names associated with this video.

On the resulting page, check the button beside This video should be assigned to a particular title.
Click the Continue button

Enter the title of the Video Game in the Another Title box, e.g. Alien: Isolation
Select the correct item from the list that pops up :  Alien: Isolation (tt3391132)
Click the Submit button

The process for submitting the other two is the same.

Good luck

thanks