Miley Cyrus and Liam Hemsworth on Set in Philadelphia

Miley Cyrus visited her fiancé, Liam Hemsworth, yesterday on the Philadelphia set of his new movie, Paranoia. They made the rounds together with a couple of friends when the cameras weren't rolling, but Liam did have to get down to work occasionally with his costar Richard Dreyfuss. Miley and Liam arrived in the City of Brotherly Love a few weeks ago to settle in while Liam shoots his latest picture. It seems Miley's gotten into tanning during her free time, too! She's also taken time to promote one of her own big-screen projects. Her movie LOL is out on DVD this week, and Miley's been encouraging her almost seven million Twitter followers to check it out.