I only just recently got into this series, thanks (of course) to my stepbrother.
The games we bought, in order, are:
Harry Potter: Years 5-7
Harry Potter: Years 1-4
Star Wars: The Complete Saga
Indiana Jones: The Original Adventures (It came in a case with Kung Fu Panda, so we have yet to play IJ:TOA.)
EDIT: We have just played Indiana Jones, and it is unfortunately our least favourite of all the ones we played so far.