Once in a composition, select your layer (the flash movie) and use the shortcut ctrl+Alt+T (cmd+alt+T on a mac) to activate time remapping. Now you can make your movie longer.
You can also clic on a colomn label in the timeline window, and select to show the stretch column. From here you can specify the new length of your movie in %.
Choose the one that better suits your needs.
Hope that helps,
Im now able to extend the duration...
But somehow, when i do the RAM Preview, the movie doesnt show its animation, what am i doing wrong here?
Does your movie freeze all along ? Did ou use Timereamapping or Stretch ?
What kind of flash file did you import, swf or flv / f4v ?
I imported a swf file...
And yeah, the flash movie froze totally.
I used Time Remapping [stretching the little bar while Time Remapping] like you said before.
However, I decided to make the whole movie in Flash, which just works so much easier as AE...
Thanks for the help.