I'm posting this real quick tutorial for KingDucky, but I figured some of the newbies and maybe some of you who don't already know... just how to apply an anamorphic crop to your footage. There are a few ways to do this, I will show you three ways. One will involve Adobe Premiere Pro (I happened upon this by accident), and the other two will involve Sony Vegas Pro 10 (you can do it in most versions as far as I'm aware).
First off, start a project and fiddle with the settings as you see fit for your project. Most common is 1920x1080 24p, but I tend to use 1920x1080 25p for my work.
Go to your Title menu, Create a New Title and select "From a Template". A little box will appear. Find the drop down titled "Mattes" and select "Matte letterbox". When you first drop this in, it will most definitely need tweaking.
As you can see from my example, it's cutting off heads. This is fine, we're going to click one of the black "bars" (use the mouse pointer button), and click the BOTTOM line around the bar and drag it up to shorten the height of the bar. Do this only if you believe your crop is too much, or you want something smaller than the rough 2:35 aspect that it is. If you're happy with the amount you have, close the title box off and drag your new title from the project window onto your timeline ON VIDEO TWO or higher, depending on the amount of video tracks your footage is using. Once that is done, drag the corner of the new title track to the end of the timeline so it covers your footage (see below).
From the example above, you can see there is most likely too much of the top half of the frame being cut off. This is fine, because we will reframe the footage.
Select your video (one at a time if you have more videos in your timeline) and click the effects controls window. Click the "Motion" twirl-down and find the "position" settings. You should see the word "position" with a keyframe button and some numbers next to it. Take note of those numbers, we're gonna use that to reframe. You will want to ignore the first set (in my example below, those are "940"). Select the numbers next to it, hold and drag with your mouse until you are happy with the frame. Don't drag too far though, you only have limited room to move
And above is my crop. As you can probably tell, the crop is a little much for the footage... but you get the idea. This can be changed by editing the title track you dropped in earlier.
Sony Vegas methods will be posted next.