Union reprised her role as Kristen in "Think Like a Man Too" in 2014, but it received mostly negative reviews. She believed the film would do well and faced comparisons to her character, who was a newlywed while Union was engaged at the time, a similarity she dispelled by insisting she kept her relationship "enjoyable, fresh and exciting". Union was announced in July 2014 as a producer in the Lifetime film "With This Ring". She was featured in Chris Rock's "Top Five", playing the fiancée of Rock's character. Union viewed her "Top Five" character as being similar to members of the Kardashian family or the Braxton sisters. In November 2015, Union began voicing Nala in the Disney movie and series "The Lion Guard". In October 2016, Union was featured in "The Birth of a Nation" as Esther, a slave in the Antebellum South who is raped by a white man. Union stated in an op-ed for the "Los Angeles Times" that she took the role due to her relating to it as a rape victim herself. Later that year, Union had a prominent role as Rachel Meyers in the comedy film "Almost Christmas", released in November. Ariel Scotti of "The New York Times" panned Union's performance: "Each overused phrase that falls out of her character, Rachel's, vindictive, childish mouth takes viewers further out of the movie experience."