My wife was watching Lifetime Movie Network one day and came across this gem:
The Perfect Bride (1991)
Starring: Kelly Preston
Sample clips: https://www.youtube.com/watch?v=UtLrk9q7vNY#t=32
Like many Lifetime movies, it is bad, but what makes this a potential riffing target is the pacing of the dialogue. It lends itself to riffing.