AOL Moviefone has an online gallery of the “Top 25 Hookups on Set,” and while some of the actors were both single when they found solace in the arms of a co-star the examples are also full of notorious celebrity cheaters. We can all guess the couple named as number one. One of them was cheating probably and the other was widely blamed for it. Their film was ironically named “Mr. and Mrs. …” and although they became one of the most famous celebrity couples with a bunch of kids in a short period of time, they have yet to make it official. Given the many historical examples, these two won’t be the last or the most high profile. Workplace romances are common and often break up relationships.

Here are my favorite cheaters, with some examples from classic films. As much as Brad and Angelina are chastised now, it was much worse for the celebrities in the not-too-distant and more puritanical past. Thanks to AOL Moviefone for compiling the larger list of on-set hookups.

Clark Cable and Loretta Young
“The Call of The Wild” (1935)

Robert Rodriguez and Rose McGowan
“Grindhouse” (2007)

Ingrid Bergman and Roberto Rossellini
“Stromboli” (1950)

Nicole Kidman and Tom Cruise
“Days of Thunder” (1990)

Jennifer Lopez and Ben Affleck
“Gigli” (2003)

Ali McGraw and Steve McQueen
“The Getaway” (1972)

Humphrey Bogart and Lauren Bacall
“To Have and Have Not” (1944)

Russell Crowe and Meg Ryan
“Proof of Life” (2000)

Richard Burton and Elizabeth Taylor
“Cleopatra” (1963)

Brad Pitt and Angelina Jolie
“Mrs. and Mrs. Smith” (2005)

On-set romances involving non-cheaters include Ryan Gosling and Rachel McAdams on the set of “The Notebook” in 2004, Heath Ledger and Michelle Williams for “Brokeback Mountain” in 2005, and Matthew McConaughey and Penelope Cruz on 2005’s “Sahara.” The best examples of non-cheating celebrity on-set hookups that have stood the test of time are unmarried older couples Goldie Hawn and Kurt Russell, who met while doing “Swingshift” in 1984, and Tim Robbins and Susan Sarandon who hooked up in 1988 while filming the hot baseball film “Bull Durham.”

Julia Roberts met her then-married future husband Danny Moder on the set of “The Mexican” in 2000. Modor was a cameraman not her co-star, though, so these two didn’t make the list.

Check out the full list on AOL Moviefone.