I Am Legend. Ah, dude. This could have been so amazing. The early scene in the dark building has to be one of the most intense film moments ever, because Smith is not a commando and he is scared as shit. It’s also filmed just about perfectly. I love the early gut-clenching mood anxiety, and the exploration of the toll of solitude (see also: Moon, Alien, Solaris). The movie goes off the rails by the end. The CGI-fest is jarring enough, but the shift in tone is really disappointing. But man, 90% is incredible. David Bax puts it well:
There’s more to a movie than how it ends. Take, for example, Francis Lawrence’s I Am Legend, which spent an hour building one of the most daring and intense genre blockbusters in years before the third act from some other, dumber movie swooped in and delivered the automatic weaponry and explosions no one was asking for at that point. It’s a shame but it doesn’t obliterate the experience of what came before it.