Robert Pattinson and Kristen Stewart Break Up Rumors Loom: 'Twilight' Lovebirds Hollywood's Highest-Grossing Onscreen Couple [FULL LIST]

Although rumors have it that Robert Pattison and Kristen Stewart's real life romance may no longer be, the "Twilight" lovebirds were recently named Hollywood's highest-grossing onscreen couple by Forbes magazine. According to reports, Edward and Bella's unique yet relatable relationship in the "Twilight Saga" series is simply too hard to ignore. Wonder if R-Patz and K-Stew are able to continue reviving that passionate chemistry off-screen?

To compile the "highest-grossing onscreen couples" list, Forbes considered the top 10 highest-grossing romantic films of the last three years... and the attraction between Pattinson (Edward Cullen) and Stewart (Bella Swan) far surpassed a slew of other competitors including Hollywood big-names Channing Tatum/Rachel McAdams and Adam Sandler/Jennifer Aniston. Check out the full list:

1.     Robert Pattinson and Kristen Stewart, "Twilight" films, $1.17 billion.

2.     Channing Tatum and Rachel McAdams, "The Vow," $125 million.

3.     Adam Sandler and Jennifer Aniston, "Just Go with It," $103 million.

4.     Chris Noth and Sarah Jessica Parker, "Sex and the City," $95 million.

5.     Steve Carell and Julianne Moore, "Crazy Stupid Love," $84 million.

6.     Channing Tatum and Amanda Seyfried, "Dear John," $80 million.

7.     Ashton Kutcher and Natalie Portman, "No Strings Attached," $71 million.

8.     Liam Hemsworth and Miley Cyrus, "The Last Song," $63 million.

9.     Zac Efron and Taylor Schilling, "The Lucky One," $60 million.

10.   Robert Pattinson and Reese Witherspoon, "Water for Elephants," $59 million.

According to Forbes' Dorothy Pomerantz, "There is something unique about [the 'Twilight'] films in the way that people have attached themselves to them... The movies are unconventional, and you have the added element that the two people are a couple in real life."

To read more about Forbes' "Highest-grossing Onscreen Couples," go here.

But according to recent reports, Pattinson and Stewart's real-life relationship might not be going so well... apparently, the British heartthrob just can't handle the drama and pressure anymore. Maybe the duo should take some pointers from their onscreen counterparts?  Read more on the break up rumors here:

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