I actually saw 28 Weeks Later first (at the cinema!). I thought it was really good, I would've said about 7.5 as well. I loved the music, the cast (Robert Carlyle, Rose Byrne, Jeremy Renner and Idris Elba are all amazing!), I thought some of the scenes were really great and it had a good atmosphere, some scenes were very unnerving, the RAGE zombies were scary.
Two years later I watched '28 Days Later', and it was NOTHING like I expected. For me, it was nothing like the sequel. All I recognised was the music and the fact that the zombies were the same. I thought the movie was going to be about Robert Carlyle's family before the events of the sequel, but it wasn't, and for a few moments I was disappointed, but then I grew to like these characters more, and I found the original to be more enjoyable, and the ending was much more powerful.
Then about another year later '28 Weeks Later' was on television and I watched it. Wasn't really impressed. Not as good on the small screen (but what film is?), a lot of the night sequences had obvious green screen and CGI effects, it looked fake. The atmosphere of the first film just wasn't there. The stuff with Carlyle's wife was good, but it lost me after that. I'd probably give it a 6/10 now.
