Just so everyone knows there's at least 3 other spanks in this movie. Another girl gets 1 smack in similiar fashion to this girl, although I dont remember it being as good. Then, the same girl from the clip posted asks for a spank and gets it (I think the plot is the 2 guys are identical twins, and they both take each other places or something, so she thinks the twin she's asking for a spank is the same one who smacked her ass before, but its not). I believe there is a spank during a dance number, I'm not sure, and the movie ends with the 2 twins getting married to 2 different girls (both of who got a spank in the previous scenes) so the 2 girls gend over and wait for a smack from each of the guys.
I heard about this movie by seeing pics on the "grabs" yahoo group, and finally saw the whole thing uploaded to youtube. However, the movie was taken down before I could post it to this group, or save the clips myself. (The "grabs" groups is an old group with pictures of girls getting their butts spanked, touched, or otherwise grabbed from different movies).
I would post a link to the group witht the pics, but I know people sometimes have trouble accessing the groups, so I just uploaded the pics from the movie to rapidshare, you can see it here: