Plaza, Greenfield, Maggie Grace, Max Minghella and Jane Levy play college friends who reunite to comfort old pal Alex (Jason Ritter) after a failed suicide attempt, reported Deadline.
The reunion over a three-day weekend sees old romantic feelings flare up, as the group question why their close bond faded after they graduated from university.
'About Alex' has been written and directed by independent filmmaker Jesse Zwick, who has worked on the NBC family drama series 'Parenthood'.
The film is expected to open in August in the US.