John Witherspoon's scenes were added after filming had wrapped. Eddie Murphy demanded that scenes with Witherspoon be added to the film. Witherspoon picked his outlandish wardrobe himself and improvised his lines.
Halle Berry was the only actress to audition for the part of Angela. Eddie Murphy and Reginald Hudlin cast her immediately after seeing her screen test.
The studio was nervous about Robin Givens being cast as Jacqueline. At the time, she was labeled as a cold-hearted golddigger by the media and the general public during her marriage to Mike Tyson. Reginald Hudlin felt her public image made her perfect for the part because she could be seen as a strong woman who could control Marcus.
The soundtrack album to Boomerang was tremendously successful on the music charts and is widely considered a magnum opus of Black R&B music in the early nineties. The soundtrack sold three million copies, achieving triple-platinum status. The album was executive produced by L.A. Reid and Kenneth 'Babyface' Edmonds and features mainly contemporary R&B, urban soul, new jack swing, hip-hop soul and several popular, chart-topping ballads that are considered classics by R&B / Soul artists such as Toni Braxton, Boyz II Men, PM Dawn, Johnny Gill, and Keith Washington.
Angela smacking Marcus was real.