Rocker Joan Jett
apologized to Kristen Stewart
after reportedly reducing her to tears during a heated confrontation on the set of upcoming biopic The Runaways
The pair have struck up a friendship since Stewart signed on to play the I Love Rock N Roll
hit-maker in a new biopic about her 1970s band
However, the actress allegedly broke down crying after Jett gave her a 'hard time' during filming in a bid to improve her performance - prompting the rocker to apologize.
A source tells the New York Daily News
, "Joan just wants Kristen to play an authentic version of herself, so she needled her a little bit too much. But she apologized when she realized how upset Kristen got."
In April, the Twilight
actress admitted she was feeling the pressure that comes with playing a real person onscreen: "It's one of the most immense responsibilities to play a real person. Her story's important. It's an incredibly triumphant feminist story really."
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(This news article provided by World Entertainment News Network)