I just stumbled on this blog today and I'm completely hooked:
The Suits of James Bond. This guys knows his menswear and then some, I tell you whut. He doesn't just cover suits. Every post is a detailed description of a whole look worn by Bond or Bond-like figures in movies. All the fabrics, styles, cuts, collars, cuffs, vents, breaks, fabrics, knots, everything you've ever obsessed over.
I found it while looking up who designed the classic grey glen plaid suit Cary Grant wore while drinking martinis at the Oak Room and getting chased down by a crop duster in
North by Northwest.
Matt Spaiser answered that question (Kilgour, French & Stanbury of Savile Row) and about three dozen more I didn't know I had.