London, Aug 30 - 'Spider-Man' actress Kirsten Dunst has sparked health fears after going back to her drinking habit.

The 27-year-old was thought to be alcohol-free after her stint in a rehab. She was trying to stay sober for a year-and-half, but she was spotted drinking excessively in a Los Angeles bar Aug 18 and it has sparked fears for her health, reports imdb.com.

'She told (a companion) to order her a double vodka on the rocks... (he) held her by the arm to keep her stable. Even though she was wasted, she looked like she was trying to hide her drink in her jacket as she walked toward a couch. But minutes after she sat down, Kirsten gulped her drink,' said a source from the bar.