Hannover House has picked up the rights and will release happythankyoumoreplease, the Dramatic Audience Award Winner at the 2010 Sundance Film Festival on August 27 (via Variety).  Written, directed and starring Josh Radnor (How I Met Your Mother) the romantic comedy follows a New York writer and his friends who begin caring for a foster child who gets lost on the subway.

The new distributor, which is best known for its home video market, reportedly paid $1 million for the film and will open it in Los Angeles, New York, Chicago, San Francisco and Dallas before expanding it to 20 more markets on Labor Day. happythankyoumoreplease, which feels like a cousin to (500) Days of Summer and Garden State, also stars Malin Akerman (Watchman), Zoe Kazan (Me and Orson Welles), Tony Hale (Arrested Development), Kate Mara (Shooter) and Pablo Schreiber (The Wire).

At this year's Sundance, Steve had the chance to speak with Josh Radnor and Malin Akerman, click here to watch the interview.  And here's 3 clips from the film.