Rea is best known for his Oscar-nominated portrayal of an Irish Republican Army foot soldier in The Crying Game (1992), a moody drama that caused controversy because of its provocative plot: After discovering that the woman he's been falling for is a pre-op transsexual, Rea's character continues the relationship.
Rea's résumé includes several other films with overtly political themes regarding the long-standing problems between Northern Ireland and England, including Michael Collins (1996) and The Break (1998). Rea has also appeared in such notable movies as Interview with the Vampire (1994) and V for Vendetta (2005).