Lindsay Lohan - Lindsay Lohan's Rep Dismisses Scary Movie Drama Rumours

The troubled actress has been making a career comeback in recent months, with roles in Dame Elizabeth Taylor biopic Liz & DICk and new movie The Canyons, followings numerous stints in jail and rehab over the last few years.

Her latest project is a cameo appearance in the fifth film in the spoof Scary Movie franchise, but a report published in the New York Post's gossip column Page Six suggests Lohan's shoot has been dogged by drama.

The publication reports Lohan was unable to attend rehearsals and wardrobe fittings after missing a flight to Atlanta, Georgia, and the article also suggests the actress delayed starting the shoot after she was admitted to hospital in Los Angeles on Sunday (09Sep12) suffering from a bout of "walking pneumonia".

However, a representative for Lohan has spoken out to dismiss the claims, saying, "These stories are untrue, and she is willingly fulfilling all of her obligations (for the film)."

Lohan will be making an appearance in Scary Movie 5 alongside another formerly troubled star - Charlie Sheen.

The comedy is due for release next year (13).