Jennifer Aniston is keeping a low-profile while filming The Baster in New York in case she bumps into arch nemesis Angelina Jolie, it's claimed.

Brad Pitt's past and present leading ladies are both shooting movies in the Big Apple, and Jen has supposedly taken to not leaving the comfort of her hotel room in a bid to ensure their paths never cross.

“Instead of going out to restaurants where she might run into Angelina, Jennifer is entertaining guests in her hotel suite,” a source tells Life & Style magazine.

Among the guests Jen has been "entertaining" behind closed doors is Scottish beefcake Gerard Butler, amid rumours the pair have hooked up following the Marley & Me star's split from John Mayer last month.

Light reading: Angelina arrives on the set of Salt clutching a copy of War Of Choice: A Memoir Of Two Iraq Wars

Angelina, meanwhile, is currently in New York shooting scenes for upcoming spy thriller Salt.