Aliens is one of the first movies with an extended version (as so-called Director's Cut) for home media releases. That's what happened when Aliens was released on VHS and Laserdisc in 1991. Later on, the Director's Cut was released on DVD. In 2010, it was also released on Blu-ray Disc.
For details between the Theattrical Version and the Director's Cut, please click here.
This comparison is about the digital corrections for the Blu-ray Version, in comparison to the unedited DVD Version.
DC DVD: 148:05 min. PAL
DC BD: 154:26 min. NTSC
DVD: 00:16:44 / BD: 00:17:27
Exterior shot of the LV-426 during the Jorden family trip.
The lava (below on the right) is glowing stronger.
DVD: 01:44:42 / BD: 01:49:13
Ripley and Newt are stuck in the exam room because Burke locked them in. When Ripley tries to shatter the window, the DVD Version specifically shows scratches on the window. This goof has been corrected for the Blu-ray Version.
DVD: 02:00:59 / BD: 02:06:09
One of the most conspicuous goofs has been edited as well: the order Ripley reaches for the guns and puts them on the table is correct now.
In the DVD Version, Ripley reaches for a flamethrower and puts down an M41A Pulse Rifle. Then she reaches for the Pulse Rifle and puts down a flamethrower.
In the Blu-ray Version, the order of these scenes is correct now.
DVD: 02:22:58 / BD: 02:29:06
Ripley managed to get the Alien Queen into the air lock and shoot her into space. Little Newt is endangered to get dragged into space as well. In the very last second, Android Bishop, whose body got torn apart by the Alien Queen before, can grab and safe her.
In the DVD Version, the hole in the studio Lance Henriksen is standing in is recognizable. This goof has been corrected for the Blu-ray Version.