Disney has been the only BD studio that has not left consumers out if they upgrade their dvd's to Bluray. Every other studio and new release is notoriously lacking extras from the dvd. Fox and MGM being the worst and Sony and Lionsgate a close second. Yes the 5th Element should have contained every supplement from the Ultimate Edition set. You have 50 gb, you have nothing but space. ID4, Day after Tomorrow, Robocop, Replacement Killers, Patriot, Ghost Rider, Master and Commmander, Spiderman, Spiderman 2, the list is endless all lacking features from the dvd.
The double dipping is coming trust me. They want to sell you all their titles twice. Just like they want to sell you a 1.0 and new and improved 1.1 compliant player and charge you twice as much for it. Spiderman and Spiderman 2 will be the first double dips. They easily could have ported over all the extras from the 2 disc sets and put them on the BD.