Uncredited 'Pamela'...?
When the movie cuts to Debbie's bridal shower for the first time, the camera follows a stunning blonde arriving at the house and being repeatedly and loudly introduced as "Pamela" by the bride's mother. She is even enthusiastically adressed by name, then hugged, by the bride Debbie. After that, she's not seen again (as far as I can tell). The role isn't credited either, as there's no "Pamela" in the cast list on IMDb.
Anyone know who the actress is? She even looks vaguely familiar...