What's wrong with a marriage for a limited period?

Check this out, these are some remarkable shortest hollywood marriages:

1. Britney & Jason Alexander (55 hours - 55 hrs seem very long)
2. Carmen Electra & Dennis Rodman (9 days)
3. Lisa Marie Presley & Nicolas Cage (3.5 months)
4. Drew Barrymore & Jeremy Thomas (30 days)
5. Drew Barrymore & Tom Green (5 months)