Corrected entry: In the scene where Maggie is using saved coins because she has no other money, she dumps out the coin rolls and you can see that they are "props." The coin rolls she has are the sealed type that can only be produced by a machine and not those that are produced when you roll coins from a coin jar. She would have had to purchase the rolls directly from a bank or other vendor to achieve this and she clearly did not roll them herself.
Twotall
30th Sep 2005
Correction: The submitter has included the correction him/herself - Maggie bought the coin rolls "from a bank or other vendor". It is a strange thing to do, but it is possible for her to get and keep her money like this.
Twotall