After Mortal Instruments: City of Bones costars Lily Collins and Jamie Campbell Bower were first romantically linked last July, the couple has split just before their movie's Aug. 21 release.
The actors are in the middle of promoting their movie together, but have been able to keep things amicable, UsWeekly reports.
"They've been really good about doing the press tour together for their movie," an insider tells the mag. "They were able to stay friendly."
Indeed. The twosome sat side by side and were all smiles during an autograph signing in Philadelphia last Friday.
The 24-year-olds first met on set in Toronto in 2012. Lily has been linked to leading Hollywood hotties before including Taylor Lautner and Zac Efron, while Jamie was previously engaged to his Harry Potter costar Bonnie Wright.