You hear the same refrain every year about Oscar nominations: if only those movies had been in theaters for longer. You might not have gone to see The Imitation Game on its own accord, but now that it's in contention for some major awards, it would be nice to see it in the months before it hits DVD.
AMC hears your concerns, and they're going to let you cram all those films in at the last minute, finals-style. This Saturday, the Loews Georgetown 14 theater will hold a marathon of all eight Best Picture-nominated films, starting at 10am with Boyhood and ending at around 5:30am the next day with The Grand Budapest Hotel. This extreme endurance test of art cinema will run you $65, which comes to $8 per movie and isn't a bad price for the value you're getting. Just as long as you brace yourself for 20 hours of film and prepare to eat far more popcorn and nachos than you may have hoped.
Tickets for the event are on sale through the AMC website. We have no earthly idea what the demand is for the event, so you're probably better off buying tickets in advance. If you're going to commit to a full day of movie-watching, you're going to commit.