I really enjoyed Insidious, as you can tell from my review. Even after repeat viewings, this movie holds up really well and is still a lot of fun. Insidious isn't out in the UK until April 29th, so they are still in the middle of promoting the movie and two retro-posters have been released to Bleeding Cool, which are far better than any of the US versions.
We have one of the posters for you below which click to see the full size, and visit the source link below to check out the other. [Thanks Fangoria]