British reports speculated about romance between Hollywood stars Jennifer Aniston and Vince Vaughn, who are in the midst of filming "The Break Up."

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Pictures taken on the movie set show Aniston and Vaughn touching each other in a way that suggests more than friendship, World Entertainment News Network reported.

"They were laughing and smiling and were very tactile together," a movie insider told the London Daily Express, which carried pictures of the pair hugging. "There was definitely some chemistry between them."

Aniston has concentrated on her movie career since her marriage to actor Brad Pitt broke up. Pitt has been linked romantically with his "Mr. and Mrs. Smith" co-star Angelina Jolie.

Vaughn, who plays a Chicago tour guide in "The Break Up," made a cameo appearance with Pitt and Jolie in the box office hit "Mr. and Mrs. Smith" about married assassins.