An American Crime (2007)

[Nance]

Plot Outline: The true story of suburban housewife Gertrude Baniszewski (Catherine Keener), who kept a teenage girl locked in the basement of her Indiana home during the 1960s.
http://www.imdb.com/title/tt0802948/

Promo Trailer (FLV):

<object width="425" height="350"><param name="movie" value="http://www.youtube.com/v/YYYhYFuyFGw"></param><param name="wmode" value="transparent"></param><embed src="http://www.youtube.com/v/YYYhYFuyFGw" type="application/x-shockwave-flash" wmode="transparent" width="425" height="350"></embed></object>

I can't find better source, the source site put the trailer offline:
http://www.firstlookinternational.co...-0B50DB4C7F8D}

[editman]

For those who missed out, the Window Media trailer that was available in the First Look International website:
http://www.megaupload.com/?d=YN5BS0AJ

[Mithrandir01]

Something like this one, I called "great poster which enforces for watching movie"!