I found a site which has a nice breakdown of the additional scenes/material in the director’s not present in the theatrical cut.
- Listening to the strange signal
- Kane’s gun
- Lambert lashes out at Ripley
- Alien watches Brett (additional shots used instead of Brett before his death)
- Blood rain
- Ripley and Lambert exchange looks
- Cocooned
- Alien knocks Jones
Shame Scott removed the Cocooned scene from the latest release.