iMovie for iOS4-Disable iPhone 4

No, not directly. However if your start and end positions are the identical, then the Ken Burns effect is not applied.
MacBook Pro

that part i figured out. but i imported a pic that is rectangle in size horizontally and it wont fit the whole pic on the screen. no matter how i try to minimize the file it will stretch it out so i have no choice but to use KB to view the whole pic. i just want the entire pic in the shot.
MacBook Pro, 2.2 GHz 2GB RAM OS 10.5.2 - iPod video 30GB Mac OS X (10.5.2) iMac G4, 1GHZ and 1.25 MB APPLE RAM. OS X (10.5.2) Powermac G5 Dual 2.0