COLONY: Josh Holloway and Sarah Wayne Callies confront alien overlords to find their missing son in USA's gritty near-future thriller (renewed for second season).
Extras: Making-of, deleted scenes.
List price $40, out July 12 from Universal.
On Ultra HD Blu-ray (4K):
FLIGHT OF THE BUTTERFLIES: If you've got Samsung's new true-4K Ultra HD Blu-ray player (not upscaling models), you've now got full 3,840-by-2,160-pixel resolution in HDR (High Dynamic Range), in these three IMAX films on two discs each. The wow here is the cathedral of monarchs wintering in Mexican mountain trees before winging north, explored by tracking the scientist seeking their hideaway. From fluttering hordes to micro-CT scans, it's eye-popping in either full 4K or standard Blu-ray 3-D (1,920-by-1,080p); 2-D Blu-ray is also included. Extras: Fascinating making-of half-hour on hurdles of remote production. $40, Shout.
JOURNEY TO SPACE: Patrick Stewart narrates this survey of shuttle-era astronaut travel, stunning in its inky space blackness, intricate CGI of future Mars missions, gorgeous galactic close-ups. In 4K/Blu-ray/3-D. $40, Shout.
ROCKY MOUNTAIN EXPRESS: Epic scenery of trans-Canada railroad, with two bonus vintage shorts. In 4K/Blu-ray (no 3-D); $40, Shout.