[CentOS] how to delete file "--filename"??

i have file on CENTOS 4.6 and I tried to delete it failed.  I have been tried following way but NOT work:

rm -i *

rm --filename

rm \--filename

rm "\--filename"

rm '\--filename'

any ideal?


___________________________________________________ 
 您的生活即時通 － 溝通、娛樂、生活、工作一次搞定！ 
 http://messenger.yahoo.com.tw/