Some movies sound like terrible ideas on paper. Thanks to sharp writing, committed performances, or simply embracing the absurdity, these films turned questionable ideas into genuinely entertaining experiences. Here are 15 movies that really had no business being as good as they were. ©IMDbThe Lego Movie (2014)A feature film based on Lego bricks sounded like little more than a giant toy commercial. Instead, it became one of the funniest, smartest, and most heartfelt animated movies of the decade.