Terence Fisher filmed this on the run with Cushing and Lee after the trio spearheaded a short-lived breakout from Bray Studios before recapture. Fisher's usual care and the reliable cast get the best out of a good hook, doing their best to hide the micro-budget (which only really falls down when we actually see the aliens). However, it's one of several British genre films of the period that flirts far too closely with an unhappy ending only to implausibly draft in a quick resolution in the hope that no-one will ask any awkward quiestions before the end title comes up.
Seth Rogen traps himself. It's like he wants to do a genuine, sincere (ish) Green Hornet movie but can't stop himself from pitching asides at the fratboy crowd every minute or so. That he's also blown out of the water by Jay Chou doesn't help; everything's jus way off centre. No-one involved apart from Chou seems to have any sort of belief in the material.
A very-well made action thriller with a heart as Luc Besson for once gets it all just about right. It helps that Jean Reno and Natalie Portman have genuine chemistry in their double mentor/pupil relationship, and that Leon himself is a fascinating character (even if he's about as Italian as Joe Dolce). As for Gary Oldman as Stansfield he's so completely over-the-top insane that he somehow works perfectly, the old Andy Robinson gambit coming off perfectly.
That Besson later screwed the film over with a flabby 'long version' summed his career up nicely.
A remarkable film - Children of Men was always going to be a tough act to follow but Gravity manages to be even better. Beautiful and terrifying at exactly the same time (the debris strike on Explorer is balletic and chaotic, more shocking for not having inaccurate tearing metal noises), made with incredible technical skill and held together by two astounding performances from Clooney and Bullock.
Cuaron also knows that scientific accuracy is only worth a damn when it's needed by drama and that accuate-ish is accurate enough, and also that you can make a space epic without needing to make the thing three hours long.