By the age of 21 (30 as we call it), big Hollywood names start the process of replacing their faces every few years, so what you're looking at isn't 52 or 50, it's more like no more than 5 years old.
As for Sandra Bullock's objectively, scientifically proven hotness:
Exhibit A: Demolition Man. Just... Demolition Man. Hot-O-Meter: 8/10
Exhibit B: Playing Wolfenstein 3D in the early/mid 90s. Hot-O-Meter: 9.95/10
Exhibit C: Eating a pizza, while at a computer, while chatting to internet anons. While IN THE 90s. Hot-O-Meter: Fried
^^^ The above movie always got tons of shit, especially from Angelina fanboys wrongly claiming Hackers is better (LOL IKR), but The Net is, was and always will be one of the great internet-related movies, anticipating or depicting early gaming, social media, pizza ordering, airline booking, as well as the online surveillance, tracking, data mining and identity theft everyone now takes for granted.
HER FACE MAKES ME HAPPY!