I must be missing some ultra basic info here, but I can't find a way to change the aspect ratio to 16:9 in ProAnimator. If I change the "Pixel Aspect" settings to "D1/DV PAL Widescreen", there is no change. The output is always square 4:3. Upon import into a widescreen project in After Effects, I have to pull the image sides and thus distorting the image. Please tell me what I have missed. I haven't found anything on this when I have searched the forums.
When you import an image or movie into After Effects, it guesses the pixel aspect ratio from the frame size.
It looks like AE is interpreting your footage as regular PAL DV, not Widescreen.
To change the interpretation, select the footage in After Effects Project window
and type Cmd+F (or Ctrl+F on Windows, I think) to bring up the Main Interpret Footage window.
At the bottom of the window is the Pixel Aspect Ratio menu. Select DV PAL Widescreen.
Thanks for the tip Matt, but I'm afraid the result was the same as pulling out the sides of the image - it is distorted and everyone looks fat. I solved it by increasing the width of the project window in PA to close to 1100 and keeping the height at 576. That gave me a nice widescreen image, although this solution is probably not the normal one... :)