Here is a list of all the movies shown on Showtime as part of the Roger Corman Presents series back in the mid-90's.
It ran for 2 seasons and as far as I can tell these are all the movies that were shown.
I was too young to have been aware of these at the time but I'll be using this as a reference list to track them down as I can.
If anyone has any more information about the series feel free to chime in. If you know the broadcast order that'd be fantastic since I couldn't find it.