Blu-ray

Fans of Frank Oz's blackly comic musical about a man-eating plant are well-served by this recent region-free US Blu-ray release. Not only do the (authentically grainy) AVC 1.78:1 1080p encode and remixed DTS-HD MA 5.1 audio make it look and sound better than ever, but the disc also includes the option to watch the 'Director's Cut' of the film which features a meticulous restoration of the original downbeat - and somewhat more spectacular - finale. Also included on the disc are a director's commentary (plus a separate chat-track for the alternate ending), two retrospective featurettes, outtakes and deleted scenes and two trailers.

The law of diminishing returns continues to work its magic with this fourth outing in the popular cartoon franchise. This time, when Scrat's lust for acorns inadvertently causes the continental divide (don't ask) Manny, Sid and Diego find themselves stranded on an iceberg and at the mercy of prehistoric pirates as they try to get back home. What follows is a surprisingly mirth-free adventure that is so short on ideas that it gives almost as much screen time to a preachy plot involving an annoying bunch of new teenage characters. Yawn.

When 007's latest mission goes awry, M finds herself under threat from forces both at home (an inquiry into her role in the mission's failure) and abroad (a mysterious terrorist with a personal vendetta) in this 23rd outing in the continuing adventures of Britain's favourite secret agent.

Even a decade-and-a-half after its original release, Vincenzo Natali's ruthlessly efficient sci-fi shocker remains a textbook example of how to make the most of a miniscule budget. This hi-def outing's AVC 1.78:1 1080p encode isn't what you'd call glossy, but it captures the grainy nature of the source material. The audio, however, has been upgraded, resulting in an atmospheric DTS-HD MA 5.1 soundscape that belies the film's micro budget. Sadly, there are no new extras on this 15th anniversary release, just a brief interview with actress Nicole deBoer, storyboards and a commentary taken from the film's old DVD incarnation.

The most telling thing about this big-screen sci-fi blockbuster is the on-screen credit that states that it was 'suggested by' Isaac Asimov's famous collection of short stories that goes under the same name. So, while it occasionally flirts with the deeper concerns of Asimov's writing, at the end of the day director Alex Proyas' I, Robot is all about making Will Smith look bad-ass and giving him thousands and thousands of robots to shoot, punch and run over. Which may be your thing, of course.

One of Hitchcock's middling works (even he once joked that he could have 'phoned it in'), Dial M for Murder stars Ray Milland as Tony Wendice, a former tennis professional plotting to kill his adulterous wife Margot (Grace Kelly) and grab the £90,000 he'll be left in her will. Sadly - for Ray, if not his wife - his elaborate plan doesn't run smoothly, but will Margot and her lover ever discover the truth about the attempt on her life?

It may lack the scope of Princess Mononoke or Spirited Away, but My Neighbour Totoro is every bit their equal in terms of pure storytelling and unbridled imagination – it remains one of the most iconic and affecting films in the Studio Ghibli pantheon. Unlike some previous releases in the range, …Totoro hasn't had all of its native grain filtered out, resulting in a much more authentic look for this hi-def incarnation. Audio comes in LPCM stereo Japanese or English options, while extras include a picture-in-picture storyboard mode, numerous short interviews with the Japanese filmmakers and the US voice cast, plus a selection of trailers.