Chace Crawford and Demi Lovato are also being considered for Kenny Ortega's return to Kellerman's Resort.
The Gossip Girl star will play Marco, who reunites with his old flame played by Anna Kendrick in this adaptation of Heidi Murkoff's pregnancy book.
The actors will portray a father and son whose lives are rocked when the son is arrested on a murder charge.
Jon Poll will direct this Alex Schemmer written screenplay about a woman who starts dating a man she babysat fifteen years prior.
The Gossip Girl star will join Jane Fonda and Catherine Keener in the cast.