Films that disappointed upon first viewing but became a favorite?

[Todd Tomorrow]

28 Weeks Later. First time round I thought it was inferior to 28 Days Later, now I think it's far superior.

I never came to love Alien 3, but I went from outright hatred to some sort of grudging respect for its nihilistic vision. Now I'd file it under "interesting failure" rather than "travesty" as I did initially.

Licence to Kill, one of my least favourite Bond films at the time, now one of the best. Also Moonraker, which I thought was a silly and overblown retreat of The Spy Who Loved Me, now I think it's one of the most entertaining films in the series.

First time I saw 2001 it was on a small TV when I was 12 and I found it quite boring. Next time I saw it in 70mm on a massive screen and it blew my mind, now it's one of my top ten favourite films. It also took me a second viewing to come round to Barry Lyndon, now my second favourite Kubrick.