It does appear to be a go:
http://thefilmexperience.net/blog/2014/10/7/lukewarm-off-the-presses-tetris-and-angry-birds-movies.html
Like the idea in the comment section - "Meryl Streep loses her husband and turns to Tetris for confort. When she unexpectedly gets good (cue sappy romantic comedy where the lead is a ditz at first but then becomes wise and savyy at whatever she tries to accomplish) she decides to participate in the World Tetris Tournament.
Little does she know... her archrival Glenn Close is there to once again steal her crown. They've been rivals forever... But this time Meryl won't back down. With the help of Octavia Spencer as the sassy minority best friend (you know Hollywood loves those) and her new romance in her life Steve Martin (which of course Glenn Close's character will also try to steal). Cher cameos singing "You matched that tile into my heart", a song which is a shoo-in for next year's Oscars "
And THERE'S your movie! ;)"