I acquired this film a couple of years ago and on trying to find some info about it I found that even the mighty IMDb didn't have it listed. That should have been all I needed to know.
With Friends Like These is an anthology that plays like a collection of second rate Twilight Zone / Outer Limits episodes all linked together by a bus journey that never really seems to tie in with the rest of the film. Of the three stories, the only one that I gleaned any entertainment value from was the second episode in which a man (of sorts) grows out of the bacteria in a guys fridge. This episode wins points for a few spots of humour and it's bizarre premise. Other than that there is an episode with a talking car (bland and directionless) and an episode where a girl visits a very unique dating agency (my dog guessed the ending of this one).
As has been mentioned in other comments, the 18 rating is entirely unwarranted. There is nothing to offend here. If you're after a good horror anthology check out Asylum or the Creepshow films instead.