How do I build up calluses quick?

I've been practicing the guitar for the last week and can't play a chord. I put my finger on it and it just keeps the string in place when I try to play it. People have said I need to build up calluses, but I don't want to strum a guitar that doesn't make noise for weeks. If I just keep my left hand on the chord for hours while I watch a movie or something, will that build up calluses?