Robert Pattinson has revealed that he struggles remembering his lines.
The actor, who shot to fame playing Edward Cullen in the Twilight franchise, is currently filming Bel Ami with Uma Thurman.
Speaking to Focus magazine the actor said: "We're just shooting 'Bel Ami' and Declan Donnellan is directing it.
"He usually does stage productions and expects me to know all of my lines - like a stage actor.
"No chance! I realised how rusty and slow my brain has become."
2010 is a busy year for the actor as he mixes his work on the Twilight series with other projects.
He will reprise the role of Edward Cullen later this year when Eclipse, the third film in the franchise, hits the big screen.
And while Breaking Dawn is in the pipeline he has other projects before then including Unbound Captives with Rachel Weisz and Hugh Jack man as well as adaptation of Water For Elephants.
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