Hathaway, 27, starred as Gyllenhaal's love interest twice – once in Brokeback Mountain and again in her latest movie. She pretended to be offended when an interviewer at a press conference asked about his rumoured relationship with Taylor Swift.
Hathaway joked, 'Hang on, hang on, I have to say something! I have been Jake's onscreen love interest for years, all right?
'You keep the conversation to me and only me, otherwise I'm going to get nasty!'
Gyllenhaal then joked, 'Don't get Ella Enchanted
*d off.'