Die Hard

Die Hard [Blu-ray]

JFK

4x3 pillarboxed black & white (16mm?)

4x3 pillarboxed colour (16mm?)

2.35:1 black & white (16mm blowup?)

2.35:1 colour Super8 blowup

JFK (Blu-ray Book) 

The Social Network

The Social Network [Blu-ray]

White Christmas

Benny

Christmas

White Christmas (Anniversary Edition) [Blu-ray] 

Star Trek

And is there a way to automatically remove the black bars from the sides of a 1.33 image within a 16x9 (1.78) frame?

Star Trek: The Original Series - Seasons 1-3 [Blu-ray]

Enchanted

Is there a way to automatically remove the black bars from a letterbox image like this one?

Enchanted [Blu-ray]