America’s new favorite leading man (and former van-dweller) Chris Pratt genuinely seems like a pretty great dude. During a special screening of his action hit Guardians of the Galaxy for patients and parents at Children’s’ Hospital of Los Angeles, Pratt covertly left, and returned dressed as Star-Lord. For the next three hours Pratt handed out Guardians of the Galaxy toys, and then visited with kids too sick to go to the screening. According to E!, when one of the children recognized his voice from The Lego Movie, the duo spent the next 10 minutes repeating dialogue from the comedy. Well played, Andy Dwyer …