(Cover) - EN Showbiz - Sandra Bullock fears the converted church she is currently staying in is haunted, it has been reported.

The Oscar-winning actress is in the UK filming sci-fi thriller Gravity alongside George Clooney. Sandra has been unable to sleep in an apartment in north London which used to be a church and she is said to be concerned there might be paranormal activity occurring during the night. The 46-year-old star has reportedly asked movie producers to investigate the bizarre goings on.

"She's had sleepless nights due to ghostly presences. Sandra is convinced something is not right," a source told British newspaper The Sun.

It is not known if Hollywood hunk George has also been experiencing eerie episodes, or if movie bosses have hired an expert to look into the supernatural events.

In Gravity, Sandra plays the lone survivor of a space mission to repair a Hubble telescope. The movie follows her desperate attempts to return to Earth to see her daughter. The movie is scheduled for a 2012 release date. (C) Cover Media