Although Paramount's special features for the "Indiana Jones" trilogy are missing some desired features (a commentary from anyone involved) and don't take the format to the next level in the way that the features of some sets have, this fourth disc does have plenty that will thrill fans of the films.
The biggest supplement on the fourth disc is "The Making of the Trilogy", a 126-minute documentary that is separated into three sections, each ("Raiders" ends at about 50 minutes, "Doom" ends at about 90, the rest is "Crusade") covering the making of one of the three films. The documentary is a pretty remarkable mixture of fun new interviews and surprising "that had to be sitting in someone's closet kind-of-thing" behind-the-scenes footage of the actors and crew having fun on set (Spielberg chatting up an uncooperative snake, who appears confused about what the bearded man is saying to it) and trying to work out the scenes. Beyond that, there's some terrific additional footage that I wouldn't expect to see or have available, such as screen tests with some of the other choices for Indy (Tom Selleck, for example). While the participants are complimentary of those who didn't make it, the screen tests give one the idea that this wouldn't have gone on to three films or even two. The footage is in surprisingly good condition.
Ford, Spielberg, Lucas, Rhys-Davies, Karen Allen, Kate Capshaw, Connery, editor Michael Kahn, producer Frank Marshall, writer Laurence Kasdan and many others do participate in the newly recorded interviews. The interviews aren't the usual discussion of how wonderful the films turned out or how great it was to work with everyone; they're an insightful batch of fun stories (we learn more about the sickness the spread throughout much of the crew aside from Spielberg, who didn't sample the local cuisine; Spielberg chats about "renting" the submarine from the "Das Boot" production) and insightful casting, story and technical discussion.
There's also plenty of chat about the sequels, as Spielberg, Lucas and others chat about how "Doom" found itself turning towards darker waters, shooting in Venice and working with Connery for "Last Crusade". Although it doesn't completely satisfy as a replacement for commentaries, it's still a very well-done documentary that is good enough that it should hold solid replay value for fans.
Stunts of Indiana Jones: This 11-minute featurette has Ford, Spielberg, stunt coordinator Vic Armstrong and others discussing the stunts and how they were planned and rehearsed.
Sound of Indiana Jones: Spielberg and ace sound designer Ben Burtt discuss the different challenges of recording sound effects and creating a sound universe for the "Indiana Jones" films. Famed sound designer Gary Rydstrom ("T2", "Saving Private Ryan", "Finding Nemo")'s first credit happens to be "Temple of Doom" (as a sound technician, according to the Internet Movie Database), although he's not interviewed here.
Light and Magic of Indiana Jones: This 12-minute feature offers a look at the contributions of effects company Industrial Light and Magic to the "Indiana Jones" trilogy.
Music of Indiana Jones: This 12-minute piece looks at the work of composer John Williams, who discusses his work on the "Indiana Jones" trilogy and what it's like to work with both Lucas and Spielberg.
Also: The theatrical trailers for the three films, exlusive weblink and promo for the video game "Indiana Jones and the Emperor's Tomb".
Available only in the "Trilogy" 4-DVD box set.