The Baby Formula (2008)
In 2006, director Alison Reid made a 13-minute film called Succubus in which a lesbian couple (Angela Vint, Megan Fahlenbock) try to get pregnant using only their own combined DNA. The short (included here) spawned a feature-length version, shot in Toronto and starring the same actresses but now framed as a (mock) documentary. Both actresses got pregnant between the two films. Vint's water broke just before she was supposed to film the scene in which her character's water breaks.
Erick Zonca's 138-minute film is an overlong drama-thriller that tests both patience and credulity. But at its core is a bravura performance by Tilda Swinton as a lying, "out-of-control, suicidal" alcoholic (so says her ex-boyfriend, played by Saul Rubinek) who thinks kidnapping a friend's child will be her big break. Asked in 2008 how she prepared for the role, Swinton said she can't get drunk; she falls asleep. "But I've been hanging out with drunks my whole life. It's all the preparation you need."