The Forum was built as a 2,700-seat vaudeville and movie house. After World War II, the struggling theater found new life as the Teatro de Puerto Rico, catering to The Bronx's growing Latin-American population. The theater featured acts such as Mexico's Cantinflas, Cuba's Tres Patines, romantic duos like the pianist Agustin Lara and the singer Libertad la Marque from Argentina, and Puerto Rican star Iris Chacon. Following a closure in the 1980s, the theatre re-opened as a performing arts venue and has been most recently used by a church congregation.