The best Austin Powers film, definitely!

It was my fav out of the box.

A1 was a tremendous revelation, yet plays flat on re-watches.
A2 was a laugh riot, though clutched way too much with crude humour; hasn't aged well for me.

Goldmember plays like a greatest hits. Its opening bit + musical are excellent, as is Beyonce's singing Goldmember .
Birthing MiniMe, Japanese gags, jail rap & jailbreak, Fat Bastard, the Mole... there's a lot of great bits that've aged quite nicely.
I'll even say that for me, Beyonce helps the film proper age better. She's still on top, & her character was great for the '70s angle.
Goldmember himself wasn't much more than a foil for others' one liners, yet they make me laugh.

A1 B+
A2 B
A3 A-

Possibly the best opening of the series.