Serious Moonlight is a 2009 dark comedy directed by Cheryl Hines. The movie follows a high-powered lawyer, played by Meg Ryan, who holds her husband (played by Timothy Hutton) hostage in their home after discovering he's leaving her for another woman.
The movie title font on the poster resembles Bauer Bodoni Bold, a typeface revival of Giambattista Bodoni's 1798 design that emphasizes strong contrast between hairline and main stroke. More details about the font can be found here.